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Cisco IOS Software Releases 12.2 Special and Early Deployments

Cisco 1700 Series - Cisco IOS Release 12.2(4)YB

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Release Notes for the Cisco 1700 Series Routers  for Cisco IOS Release 12.2(4)YB

Table Of Contents

Release Notes for the Cisco 1700 Series Routers  for Cisco IOS Release 12.2(4)YB

Contents

System Requirements

Memory Requirements

Hardware Supported

Determining Your Software Release

Upgrading to a New Software Release

Feature Sets

New and Changed Information

New Hardware Features in Release 12.2(4)YB

1- and 2-Port Analog Modem WIC

1- and 2-Port T1/E1 Multiflex Voice/WAN Interface Card

G.SHDSL WAN Interface

New Software Features in Release 12.2(4)YB

Cisco IOS Telephony Service

Channelized Voice, Fractional, and Full T1 and E1 Services

Quality of Service for Virtual Private Networks

New Software Features Supported on Cisco 1760 Routers

Network Timing Recovery

New Software Features in Release 12.2(4)T

Limitations

Important Notes

1- and 2-Port Analog Modem WIC

Fan Operation in Cisco 1700 Series Routers

Flash defaults to Flash:1 on Multipartition Flash

Peak Cell Rate and Sustainable Cell Rate Values

Using the "boot flash" and "boot system tftp" Commands

Caveats

Resolved Caveats - Release 12.2(4)YB

Management

Unresolved Caveats - Release 12.2(4)YB

Miscellaneous

Multiservice Applications

Voice

WAN

Related Documentation

Release-Specific Documents

Platform-Specific Documents

Obtaining Documentation and Technical Assistance


Release Notes for the Cisco 1700 Series Routers  for Cisco IOS Release 12.2(4)YB


October 7, 2002

These release notes describe new features and significant software components for the Cisco 1700 series routers that support Cisco IOS Release 12.2 T, up to and including Release 12.2(4)YB. These release notes are updated as needed to describe new memory requirements, new features, new hardware support, software platform deferrals, microcode or modem code changes, related document changes, and any other important changes. Use these release notes with the Cross-Platform Release Notes for Cisco IOS  Release 12.2 T located on CCO and the Documentation CD.

For a list of the software caveats that apply to Release 12.2(4)YB, refer to the section "Caveats" and to the online Caveats for Cisco IOS Release 12.2 T document. The caveats document is updated for every 12.2 T maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD.


Note For the Cisco 1750 router, Release 12.2(4)YB contains only one new feature (VPN QoS) and no new voice features.


Contents

These release notes discuss the following topics:

System Requirements

New and Changed Information

Important Notes

Caveats

Related Documentation

Obtaining Documentation and Technical Assistance

System Requirements

This section describes the system requirements for Release 12.2(4)YB and includes the following sections:

Memory Requirements

Hardware Supported

Determining Your Software Release

Upgrading to a New Software Release

Feature Sets

Memory Requirements

This section describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.2(4)YB on the Cisco 1700 series routers. In Table 1, the term xDSL represents both ADSL and G.SHDSL.


Note The memory requirements listed in Table 1 are specifically for the new features introduced in Release 12.2(4)YB. These requirements might not apply if you are only using Release 12.2(4)YB for resolved caveats only and are not using the new features introduced in Release 12.2(4)YB.


Table 1 Recommended Memory for the Cisco 1700 Series Routers 

Platform
Image Name
Feature Set
Image
Flash Memory
DRAM Memory
Runs from

Cisco 1710 Routers

Cisco 1710 IOS IP Plus IPX/AT/ IBM/FW/IDS IPSec 3DES

IP Plus IPX/AT/IBM/ FW/IDS IPSec 3DES

c1710-bk9no3r2sy-mz

16 MB

48 MB

RAM

Cisco 1710 IOS IP Plus FW/IDS IPSec 3DES

IP Plus FW/IDS IPSec 3DES

c1710-k9o3sy-mz

8 MB

48 MB

RAM

Cisco 1720, Cisco 1721,Cisco 1750, Cisco 1751, and Cisco 1760

Cisco 1700 IOS IP Plus ADSL/IPX/AT/IBM

IP Plus xDSL/IPX/ AT/IBM

c1700-bnr2sy7-mz

16 MB

48 MB

RAM

Cisco 1700 IOS IP/IPX/ AT/IBM

IP/IPX/AT/IBM

c1700-bnr2y-mz

8 MB

32 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/FW/IDS IPSec 56

IP Plus xDSL/FW/ IDS IPSec 56

c1700-k8o3sy7-mz

16 MB

48 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL IPSec 56

IP Plus xDSL IPSec 56

c1700-k8sy7-mz

16 MB

48 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/FW/IDS IPSec 3DES

IP Plus xDSL/FW/IDS IPSec 3DES

c1700-k9o3sy7-mz

16 MB

48 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL IPSec 3DES

IP Plus xDSL IPSec 3DES

c1700-k9sy7-mz

16 MB

48 MB

RAM

Cisco 1720, Cisco 1721, Cisco 1750,Cisco 1751, and Cisco 1760 (continued)

Cisco 1700 IOS IP Plus ADSL/IPX/FW/IDS

IP Plus xDSL/IPX/ FW/ IDS

c1700-no3sy7-mz

16 MB

48 MB

RAM

Cisco 1700 IOS IP/IPX

IP/IPX

c1700-ny-mz

8 MB

32 MB

RAM

Cisco 1700 IOS IP/FW/IDS

IP/FW/IDS

c1700-o3y-mz

8 MB

32 MB

RAM

Cisco 1700 IOS IP Plus

IP Plus

c1700-sy-mz

16 MB

48 MB

RAM

Cisco 1700 IOS IP Plus ADSL 

IP Plus xDSL

c1700-sy7-mz

16 MB

48 MB

RAM

 

Cisco 1700 IOS IP

IP

c1700-y-mz

8 MB

32 MB

RAM

 

Cisco 1700 IOS IP/ADSL

IP/xDSL

c1700-y7-mz

8 MB

32 MB

RAM

Cisco 1721,Cisco 1751, and Cisco 1760

Cisco 1700 IOS IP Plus ADSL/IPX/AT/IBM/FW/ IDS IPSec 56

IP Plus xDSL/IPX/AT/ IBM/FW/IDS IPSec 56

c1700-bk8no3r2sy7-mz

16 MB

64 MB

RAM

Cisco 1700 IOS IP Plus ADSL/ IPX/AT/IBM/FW/ IDS IPSec 3DES

IP Plus xDSL/IPX/ AT/IBM/FW/IDS IPSec 3DES

c1700-bk9no3r2sy7-mz

16 MB

64 MB

RAM

Cisco 1750 Routers

Cisco 1700 IOS IP Plus Voice

IP Plus Voice

c1700-sv3y-mz

16 MB

48 MB

RAM

Cisco 1751 and Cisco 1760

Cisco 1700 IOS IP Plus ADSL/IPX/AT/IBM/Voice/FW/ IDS IPSec 56

IP Plus xDSL/IPX/AT/ IBM/Voice/FW/IDS IPSec 56

c1700-bk8no3r2sv3y7-mz

32 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/ IPX/AT/IBM/ VOX/FW/IDS IPSec 56

IP Plus xDSL/IPX/AT/ IBM/VOX/FW/IDS IPSec 56

c1700-bk8no3r2sv8y7-mz

32 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/IPX/AT/IBM/Voice/FW/IDS IPSec 3DES

IP Plus xDSL/IPX/AT/ IBM/Voice/FW/IDS IPSec 3DES

c1700-bk9no3r2sv3y7-mz

32 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/IPX/AT/IBM/VOX/FW/IDS IPSec 3DES

IP Plus xDSL/IPX/AT/ IBM/VOX/FW/IDS IPSec 3DES

c1700-bk9no3r2sv8y7-mz

32 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/Voice/FW/IDS IPSec 56

IP Plus xDSL/Voice/ FW/IDS IPSec 56

c1700-k8o3sv3y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/ VOX/FW/IDS IPSec 56

IP Plus xDSL/VOX/ FW/IDS IPSec 56

c1700-k8o3sv8y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/Voice IPSec 56

IP Plus xDSL/Voice IPSec 56

c1700-k8sv3y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/VOX IPSec 56

IP Plus xDSL/VOX IPSec 56

c1700-k8sv8y7-mz

16 MB

64 MB

RAM

Cisco 1751 and Cisco 1760 (continued)

Cisco 1700 IOS IP Plus ADSL/Voice/FW/IDS IPSec 3DES

IP Plus xDSL/Voice/ FW/IDS IPSec 3DES

c1700-k9o3sv3y7-mz

16 MB

64 MB

RAM

Cisco 1700 IOS IP Plus ADSL/ VOX/FW/IDS IPSec 3DES

IP Plus xDSL/VOX/ FW/IDS IPSec 3DES

c1700-k9o3sv8y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/Voice IPSec 3DES

IP Plus xDSL/Voice IPSec 3DES

c1700-k9sv3y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/VOX IPSec 3DES

IP Plus xDSL/VOX IPSec 3DES

c1700-k9sv8y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/IPX/Voice/FW/IDS

IP Plus xDSL/IPX/ Voice/FW/IDS

c1700-no3sv3y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/IPX/VOX/FW/IDS

IP Plus xDSL/IPX/ VOX/FW/IDS

c1700-no3sv8y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/Voice/FW/IDS

IP Plus xDSL/Voice/ FW/IDS

c1700-o3sv3y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/VOX/FW/IDS

IP Plus xDSL/VOX/ FW/IDS

c1700-o3sv8y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/Voice

IP Plus xDSL/Voice

c1700-sv3y7-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus VOX 

IP Plus VOX

c1700-sv8y-mz

16 MB

64 MB

RAM

 

Cisco 1700 IOS IP Plus ADSL/VOX

IP Plus xDSL/VOX

c1700-sv8y7-mz

16 MB

64 MB

RAM



Caution Release 12.2(4)YB supports the images listed in Table 1 only. Images that require more than 48 MB of DRAM do not run on Cisco1750 routers, even when the Cisco 1750 router maximum of 48 MB of DRAM is installed.

Hardware Supported

Cisco IOS Release 12.2(4)YB supports the following Cisco 1700 series routers:

Cisco 1710 Routers

Cisco 1720 Routers

Cisco 1721 Routers

Cisco 1750, 1750-2V, and 1750-4V Routers

Cisco 1751 and 1751-V Routers

Cisco 1760 and 1760-V Routers

The Cisco 1710, 1720, and 1721 routers run data images only. The Cisco 1750, 1750-2V, and 1750-4V routers run data or data-and-voice images, providing analog voice support. Cisco 1751, 1751-V, 1760, and 1760-V routers run data or data-and-voice images, providing digital and analog voice support.

For detailed descriptions of new hardware features and which features are supported on each router, see the "New and Changed Information" section. For descriptions of existing hardware features and supported modules, see the hardware installation guides, configuration and command reference guides, and additional documents specific to Cisco 1700 series routers, which are available on Cisco.com and the Documentation CD at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/1700/index.htm 

This URL is subject to change without notice. If it changes, point your web browser to CCO, and click the following path:
Cisco Product DocumentationAccess Servers and Access RoutersModular  Access RoutersCisco 1700 Series Routers<platform_name>

Determining Your Software Release

To determine the version of Cisco IOS software currently running on your Cisco 1700 series router, log in to the router and enter the show version EXEC command. The following sample output from the show version command indicates the version number on the second output line:

router> show version
Cisco Internetwork Operating System Software 
IOS (tm) C1700 Software (C1700-Y-MZ), Version 12.2(4)YB, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
Synched to technology version 12.2(5.4)T

Upgrading to a New Software Release

For general information about upgrading to a new software release, see
Technical Support for 1700 Series Access Routers.

Feature Sets

The Cisco IOS software is packaged in feature sets consisting of software images—depending on the platform. Each feature set contains a specific set of Cisco IOS features. Release 12.2(4)YB supports the same feature sets as Releases 12.2 and 12.2 T, but Release 12.2(4)YB includes new features supported by the Cisco 1700 series routers.


Caution Cisco IOS images with strong encryption (including, but not limited to 168-bit [3DES] data encryption feature sets) are subject to United States government export controls and have limited distribution. Strong encryption images to be installed outside the United States are likely to require an export license. Customer orders can be denied or subject to delay due to United States government regulations. When applicable, the purchaser/user must obtain local import and use authorizations for all encryption strengths. Please contact your sales representative or distributor for more information, or send an e-mail to export@cisco.com.

Table 2 through Table 6 list the features and feature sets supported in Cisco IOS Release 12.2(4)YB:

Table 2—Cisco 1710 routers

Table 3—Cisco 1721, 1751, and 1760 routers

Table 4—Cisco 1720, 1721, 1750, 1751, and 1760 routers

Table 5—Cisco 1750, 1751, and 1760 routers

Table 6—Cisco 1751 and 1760 routers

The tables use the following conventions:

xDSL—This term represents both ADSL and G.SHDSL.

Yes—The feature is supported in the software image.

No—The feature is not supported in the software image.

In—The number in the "In" column indicates the Cisco IOS release in which the feature was introduced. For example, "12.2(4)YB" means the feature was introduced in 12.2(4)YB. If a cell in this column is empty, the feature was included in a previous release or the initial base release.


Note These feature set tables only contain a selected list of features, which are cumulative for Release 12.2(4)nn early deployment releases only (nn identifies each early deployment release). The tables do not list all features in each image—additional features are listed in the Cross-Platform Release Notes for Cisco IOS  Release 12.2 T  and Release 12.2 T Cisco IOS documentation.


Table 2 Feature List by Feature Set for Cisco 1710 Routers 

Feature
In
Feature Set
   
IP Plus IPX/AT/IBM/ FW/IDS IPSec 3DES
IP Plus FW/IDS IPSec 3DES
Multimedia & Quality of Service
     

CAC for VoIP call

 

No

No

DiffServ for voice signaling traffic

 

No

No

Multiservice Applications
     

Cisco IOS Telephony Service

 

No

No

G.728 codec support

 

No

No

TCL scripting for IVR

 

No

No

RTSP enhanced IVR

 

No

No

T.37 fax relay

 

No

No

T.38 fax relay

 

No

No

SIP features 1

 

No

No

Survivable Remote Site Telephony (SRST)

 

No

No

MGCP features 2

 

No

No

Modem pass through over VoIP

 

No

No

Quality of Service
     

VPN QoS

12.2(4)YB

Yes

Yes

Security
     

Easy VPN

12.2(4)YA

Yes

Yes

Voice
     

1- & 2-port T1/E1 Multiflex VWIC

 

No

No

E1 R2 Support

 

No

No

T1 CAS

 

No

No

T1/E1 Voice PRI Q.931 and PRI QSIG Protocol

 

No

No

WAN
     

1- and 2-Port Analog Modem WIC

 

No

No

G.SHDSL WIC

 

No

No

1 SIP features include:

1 . Call transfer capabilities using the refer method

1 . Configurable public switched telephone network (PSTN) cause code to SIP response

1 . Gateway support for bind command

1 . ISDN progress indicator support for SIP using 183 session progress

1 . NAT support for SIP

1 . RFC2782 compliance for DNS SRV

1 . Session initiation protocol (SIP)

1 . Session initiation protocol for VoIP enhancements

1 . SIP diversion header implementation for redirecting number

1 . SIP DTMF relay using NTE

1 . SIP gateway support for third party call control

1 . SIP gateway support of RSVP and "tel" URL

1 . SIP intra-gateway hair-pinning

1 . SIP INVITE request with malformed via header

1 . SIP T.38 fax relay

1 . SIP user agent MIB

2 MGCP features include:

2 . MGCP 1.0

2 . MGCP based fax (T.38) and DTMF relay

2 . MGCP basic CLASS and operator services

2 . MGCP VoIP call admission control


Table 3 Feature List by Feature Set for Cisco 1721, 1751, and 1760 Routers 

Feature
In
Feature Set
   
IP Plus xDSL/IPX/AT/IBM/ FW/IDS IPSec 56
IP Plus xDSL/IPX/AT/IBM/ FW/IDS IPSec 3DES
Multimedia & Quality of Service
     

CAC for VoIP call

 

No

No

DiffServ for voice signaling traffic

 

No

No

Multiservice Applications
     

Cisco IOS Telephony Service

 

No

No

G.728 codec support

 

No

No

TCL scripting for IVR

 

No

No

RTSP enhanced IVR

 

No

No

T.37 fax relay

 

No

No

T.38 fax relay

 

No

No

SIP features 1

 

No

No

Survivable Remote Site Telephony (SRST)

 

No

No

MGCP features 2

 

No

No

Modem pass through over VoIP

 

No

No

Quality of Service
     

VPN QoS

12.2(4)YB

Yes

Yes

Security
     

Easy VPN

12.2(4)YA

Yes

Yes

Voice
     

1- & 2-port T1/E1 Multiflex VWIC

 

Yes

Yes

E1 R2 Support

 

No

No

T1 CAS

 

No

No

T1/E1 Voice PRI Q.931 and PRI QSIG Protocol

 

No

No

WAN
     

1- and 2-Port Analog Modem WIC3

12.2(4)YB

Yes

Yes

G.SHDSL WIC

12.2(4)XL4

12.2(4)YB5

Yes

Yes

1 For a list of the SIP features, see Table 2, Footnote 1

2 For a list of the MGCP features, see Table 2, Footnote 2

3 Release 12.2(4)YB does not support the 1- and 2-Port Analog Modem WIC on the Cisco 1750 router.

4 This feature was introduced on Cisco 1720, 1750, and 1751 routers in Release 12.2(4)XL.

5 This feature was introduced on Cisco 1760 routers in Release 12.2(4)YB.


Table 4 Feature List by Feature Set for Cisco 1720, 1721, 1750, 1751, and 1760 Routers, Part 1 of 2 

Feature
In
Feature Set
   
IP Plus xDSL/IPX/ AT/IBM
IP/IPX/ AT/IBM
IP Plus xDSL/FW/ IDS IPSec 56
IP Plus xDSL IPSec 56
IP Plus xDSL/FW/IDS IPSec 3DES
IP Plus xDSL IPSec 3DES
Multimedia & Quality of Service
             

CAC for VoIP call

 

No

No

No

No

No

No

DiffServ for voice signaling traffic

 

No

No

No

No

No

No

Multiservice Applications
             

Cisco IOS Telephony Service

 

No

No

No

No

No

No

G.728 codec support

 

No

No

No

No

No

No

TCL scripting for IVR

 

No

No

No

No

No

No

RTSP enhanced IVR

 

No

No

No

No

No

No

T.37 fax relay

 

No

No

No

No

No

No

T.38 fax relay

 

No

No

No

No

No

No

SIP features 1

 

No

No

No

No

No

No

Survivable Remote Site Telephony (SRST)

 

No

No

No

No

No

No

MGCP features 2

 

No

No

No

No

No

No

Modem pass through over VoIP

 

No

No

No

No

No

No

Quality of Service
             

VPN QoS

12.2(4)YB

No

No

Yes

Yes

Yes

Yes

Security
             

Easy VPN

12.2(4)YA

No

No

Yes

Yes

Yes

Yes

Voice
             

1- & 2-port T1/E1 Multiflex VWIC

 

Yes

No

Yes

Yes

Yes

Yes

E1 R2 Support

 

No

No

No

No

No

No

T1 CAS

 

No

No

No

No

No

No

T1/E1 Voice PRI Q.931 and PRI QSIG Protocol

 

No

No

No

No

No

No

WAN
             

1- and 2-Port Analog Modem WIC3

12.2(4)YB

Yes

Yes

Yes

Yes

Yes

Yes

G.SHDSL WIC

12.2(4)XL4

12.2(4)YB5

Yes

No

Yes

Yes

Yes

Yes

1 For a list of the SIP features, see Table 2, Footnote 1

2 For a list of the MGCP features, see Table 2, Footnote 2

3 Release 12.2(4)YB does not support the 1- and 2-Port Analog Modem WIC on the Cisco 1750 router.

4 This feature was introduced on Cisco 1720, 1750, and 1751 routers in Release 12.2(4)XL.

5 This feature was introduced on Cisco 1760 routers in Release 12.2(4)YB.


Table 4 Feature List by Feature Set for Cisco 1720, 1721, 1750, 1751, and 1760 Routers, Part 2 of 2 

Feature
In
Feature Set
   
IP Plus xDSL/ IPX/FW/IDS
IP/IPX
IP FW/ IDS
IP Plus xDSL
IP Plus
IP
IP/ xDSL
Multimedia & Quality of Service
               

CAC for VoIP call

 

No

No

No

No

No

No

No

DiffServ for voice signaling traffic

 

No

No

No

No

No

No

No

Multiservice Applications
               

Cisco IOS Telephony Service

 

No

No

No

No

No

No

No

G.728 codec support

 

No

No

No

No

No

No

No

TCL scripting for IVR3

 

No

No

No

No

No

No

No

RTSP enhanced IVR3

 

No

No

No

No

No

No

No

T.37 fax relay3

 

No

No

No

No

No

No

No

T.38 fax relay3

 

No

No

No

No

No

No

No

SIP features 1  3

 

No

No

No

No

No

No

No

Survivable Remote Site Telephony (SRST)

 

No

No

No

No

No

No

No

MGCP features 2 3

 

No

No

No

No

No

No

No

Modem pass through over VoIP

 

No

No

No

No

No

No

No

Quality of Service
               

VPN QoS

12.2(4)YB

No

No

No

No

No

No

No

Security
               

Easy VPN

12.2(4)YA

No

No

No

No

No

No

No

Voice
               

1- & 2-port T1/E1 Multiflex VWIC3

12.2(4)YB

Yes

No

No

Yes

No

No

No

E1 R2 Support3

12.2(4)YB

No

No

No

No

No

No

No

T1 CAS3

12.2(4)YB

No

No

No

No

No

No

No

T1/E1 Voice PRI Q.931 and PRI QSIG Protocol3

12.2(4)YB

No

No

No

No

No

No

No

WAN
               

1- and 2-Port Analog Modem WIC3

12.2(4)YB

Yes

Yes

Yes

Yes

Yes

Yes

Yes

G.SHDSL WIC

12.2(4)XL4

12.2(4)YB5

Yes

No

No

Yes

No

No

Yes

1 For a list of the SIP features, see Table 2, Footnote 1

2 For a list of the MGCP features, see Table 2, Footnote 2

3 Release 12.2(4)YB does not support the 1- and 2-Port Analog Modem WIC on the Cisco 1750 router.

4 This feature was introduced on Cisco 1720, 1750, and 1751 routers in Release 12.2(4)XL.

5 This feature was introduced on Cisco 1760 routers in Release 12.2(4)YB.


Table 5 Feature List by Feature Set for Cisco 1750 Routers

Feature
In
Feature Set
   
IP Plus Voice
Multimedia & Quality of Service
   

CAC for VoIP call

12.2(4)XM

No

DiffServ for voice signaling traffic

12.2(4)XM

Yes

Multiservice Applications
   

Cisco IOS Telephony Service

 

No

G.728 codec support

12.2(4)XM

Yes

TCL scripting for IVR

12.2(4)XM

No

RTSP enhanced IVR

12.2(4)XM

No

T.37 fax relay

12.2(4)XM

No

T.38 fax relay

12.2(4)XM

No

SIP features 1

12.2(4)XM

No

Survivable Remote Site Telephony (SRST)

 

No

MGCP features 2

12.2(4)XM

No

Modem pass through over VoIP

12.2(4)XM

No

Quality of Service
   

VPN QoS

 

No

Security
   

Easy VPN

 

No

Voice
   

1- & 2-port T1/E1 Multiflex VWIC3

 

No

E1 R2 Support3

 

No

T1 CAS3

 

No

T1/E1 Voice PRI Q.931 and PRI QSIG Protocol3

 

No

WAN
   

1- and 2-Port Analog Modem WIC4

 

No

G.SHDSL WIC

12.2(4)XL5

12.2(4)YB6

Yes

1 For a list of the SIP features, see Table 2, Footnote 1

2 For a list of the MGCP features, see Table 2, Footnote 2

3 Release 12.2(4)YB does not support the following features on the Cisco 1750 router: 1- & 2-port T1/E1 Multiflex VWIC, E1 R2 support, T1 CAS, and T1/E1 voice PRI Q.931 and PRI QSIG Protocol.

4 Release 12.2(4)YB does not support the 1- and 2-Port Analog Modem WIC on the Cisco 1750 router.

5 This feature was introduced on Cisco 1720, 1750, and 1751 routers in Release 12.2(4)XL.

6 This feature was introduced on Cisco 1760 routers in Release 12.2(4)YB.



Caution Release 12.2(4)YB does not support the following features on the Cisco 1750 router: 1- and 2-Port Analog Modem WIC, Channelized and Fractional T1 and E1 WAN Interfaces, 1- & 2-port T1/E1 Multiflex VWIC, E1 R2 Support, T1 CAS, T1/E1 Voice PRI Q.931 (PRI Voice), and PRI QSIG Protocol.

Table 6 Feature List by Feature Set for Cisco 1751 and 1760 Routers, Part 1 of 3 

Feature
In
Feature Set
   
IP Plus xDSL/IPX/ AT/IBM/ Voice/FW/ IDS IPSec 56
IP Plus xDSL/IPX/ AT/IBM/ VOX/ FW/IDS IPSec 56
IP Plus xDSL/IPX/AT/ IBM/Voice/ FW/IDS IPSec 3DES
IP Plus xDSL/ IPX/AT/ IBM/VOX /FW/IDS IPSec 3DES
IP Plus xDSL/ Voice/ FW/IDS IPSec 56
IP Plus xDSL/ VOX/FW/ IDS IPSec 56
Multimedia & Quality of Service
             

CAC for VoIP call

12.2(4)XM

No

Yes

No

Yes

No

Yes

DiffServ for voice signaling traffic

12.2(4)XM

No

Yes

No

Yes

No

Yes

Multiservice Applications
             

Cisco IOS Telephony Service1

12.2(2)XT2 12.2(4)YB3

No

Yes

No

Yes

No

Yes

G.728 codec support

12.2(4)XM

No

Yes

No

Yes

No

Yes

TCL scripting for IVR

12.2(4)XM

No

Yes

No

Yes

No

Yes

RTSP enhanced IVR

12.2(4)XM

No

Yes

No

Yes

No

Yes

T.37 fax relay

12.2(4)XM

No

Yes

No

Yes

No

Yes

T.38 fax relay 2

12.2(4)XM

No

Yes

No

Yes

No

Yes

SIP features 1  3

12.2(4)XM

 

Yes

 

Yes

 

Yes

Survivable Remote Site Telephony (SRST)

12.2(2)XT2 12.2(4)YB3

No

Yes

No

Yes

No

Yes

MGCP features4

12.2(4)XM

No

Yes

No

Yes

No

Yes

Modem pass through over VoIP

12.2(4)XM

No

Yes

No

Yes

No

Yes

Quality of Service
             

VPN QoS

12.2(4)YB

Yes

Yes

Yes

Yes

Yes

Yes

Security
             

Easy VPN

12.2(4)YA

Yes

Yes

Yes

Yes

Yes

Yes

Voice
             

1- & 2-port T1/E1 Multiflex VWIC

12.2(4)YB

No

Yes

No

Yes

No

Yes

E1 R2 Support

12.2(4)YB

No

Yes

No

Yes

No

Yes

T1 CAS

12.2(4)YB

No

Yes

No

Yes

No

Yes

T1/E1 Voice PRI Q.931 and PRI QSIG Protocol

12.2(4)YB

No

Yes

No

Yes

No

Yes

WAN
             

1- and 2-Port Analog Modem WIC

12.2(4)YB

Yes

Yes

Yes

Yes

Yes

Yes

G.SHDSL WIC

 

No

No

No

No

No

No

1 In Cisco IOS Release 12.2(2)XT, the feature name "Cisco IP Keyswitch Version 2.0" changed to "Cisco IOS Telephony Service Version 2.0" and the command mode changed from "keyswitch-configuration mode" to "telephony-service configuration mode".

2 This feature is supported on Cisco 1760 routers on Release 12.2(4)YB and above only. Release 12.2(4)XM does not support this feature on Cisco 1760 routers.

3 For a list of the SIP features, see Table 2, Footnote 1

4 For a list of the MGCP features, see Table 2, Footnote 2


Table 6 Feature List by Feature Set for Cisco 1751 and 1760 Routers, Part 2 of 3 

Feature
In
Feature Set
   
IP Plus xDSL/ Voice IPSec 56
IP Plus xDSL/ VOX IPSec 56
IP Plus xDSL/Voice/ FW/IDS IPSec 3DES
IP Plus xDSL/VOX/ FW/IDS IPSec 3DES
IP Plus xDSL/Voice IPSec 3DES
IP Plus
xDSL/VOX IPSec 3DES
Multimedia & Quality of Service
             

CAC for VoIP call

12.2(4)XM

No

Yes

No

Yes

No

Yes

DiffServ for voice signaling traffic

12.2(4)XM

No

Yes

No

Yes

No

Yes

Multiservice Applications
             

Cisco IOS Telephony Service1

12.2(2)XT2 12.2(4)YB3

No

Yes

No

Yes

No

Yes

G.728 codec support

12.2(4)XM

No

Yes

No

Yes

No

Yes

TCL scripting for IVR

12.2(4)XM

No

Yes

No

Yes

No

Yes

RTSP enhanced IVR

12.2(4)XM

No

Yes

No

Yes

No

Yes

T.37 fax relay

12.2(4)XM

No

Yes

No

Yes

No

Yes

T.38 fax relay 4

12.2(4)XM

No

Yes

No

Yes

No

Yes

SIP features 1  5

12.2(4)XM

No

Yes

No

Yes

No

Yes

Survivable Remote Site Telephony (SRST)

12.2(2)XT2 12.2(4)YB3

No

Yes

No

Yes

No

Yes

MGCP features 4  6

12.2(4)XM

No

Yes

No

Yes

No

Yes

Modem pass through over VoIP

12.2(4)XM

No

Yes

No

Yes

No

Yes

Quality of Service
             

VPN QoS

12.2(4)YB

Yes

Yes

Yes

Yes

Yes

Yes

Security
             

Easy VPN

12.2(4)YA

Yes

Yes

Yes

Yes

Yes

Yes

Voice
             

1- & 2-port T1/E1 Multiflex VWIC

12.2(4)YB

No

Yes

No

Yes

No

Yes

E1 R2 Support

12.2(4)YB

No

Yes

No

Yes

No

Yes

T1 CAS

12.2(4)YB

No

Yes

No

Yes

No

Yes

T1/E1 Voice PRI Q.931 and PRI QSIG Protocol

12.2(4)YB

No

Yes

No

Yes

No

Yes

WAN
             

1- and 2-Port Analog Modem WIC

12.2(4)YB

Yes

Yes

Yes

Yes

Yes

Yes

G.SHDSL WIC

 

Yes

Yes

Yes

Yes

Yes

Yes

1 In Cisco IOS Release 12.2(2)XT, the feature name "Cisco IP Keyswitch Version 2.0" changed to "Cisco IOS Telephony Service Version 2.0" and the command mode changed from "keyswitch-configuration mode" to "telephony-service configuration mode".

2 This feature was introduced on Cisco 1751 routers in Release 12.2(2)XT.

3 This feature was introduced on Cisco 1760 routers in Release 12.2(4)YB.

4 This feature is supported on Cisco 1760 routers on Release 12.2(4)YB and above only. Release 12.2(4)XM does not support this feature on Cisco 1760 routers.

5 For a list of the SIP features, see Table 2, Footnote 1

6 For a list of the MGCP features, see Table 2, Footnote 2


Table 6 Feature List by Feature Set for Cisco 1751 and 1760 Routers, Part 3 of 3 

Feature
In
Feature Set
   
IP Plus xDSL/ IPX/ Voice/FW/ IDS
IP Plus xDSL/ IPX/VOX/ FW/IDS
IP Plus xDSL/ Voice/ FW/IDS
IP Plus xDSL/ VOX/FW/ IDS
IP Plus xDSL/ VOX
IP Plus xDSL/ Voice
IP Plus VOX
Multimedia & Quality of Service
               

CAC for VoIP call

12.2(4)XM

No

Yes

No

Yes

Yes

No

Yes

DiffServ for voice signaling traffic

12.2(4)XM

No

Yes

No

Yes

Yes

No

Yes

Multiservice Applications
               

Cisco IOS Telephony Service1

12.2(2)XT2 12.2(4)YB3

No

Yes

No

Yes

Yes

No

Yes

G.728 codec support

12.2(4)XM

No

Yes

No

Yes

Yes

No

Yes

TCL scripting for IVR

12.2(4)XM

No

Yes

No

Yes

Yes

No

Yes

RTSP enhanced IVR

12.2(4)XM

No

Yes

No

Yes

Yes

No

Yes

T.37 fax relay

12.2(4)XM

No

Yes

No

Yes

Yes

No

Yes

T.38 fax relay 4

12.2(4)XM

No

Yes

No

Yes

Yes

No

Yes

SIP features 4  5

12.2(4)XM

No

Yes

No

Yes

Yes

No

Yes

Survivable Remote Site Telephony (SRST)

12.2(2)XT2 12.2(4)YB3

No

Yes

No

Yes

Yes

No

Yes

MGCP features 4  6

12.2(4)XM

No

Yes

No

Yes

Yes

No

Yes

Modem pass through over VoIP 4

12.2(4)XM

No

Yes

No

Yes

Yes

No

Yes

Quality of Service
               

VPN QoS

12.2(4)YB

No

No

No

No

No

No

No

Security
               

Easy VPN

12.2(4)YA

No

No

No

No

No

No

No

Voice
               

1- & 2-port T1/E1 Multiflex VWIC

12.2(4)YB

No

Yes

No

Yes

Yes

No

Yes

E1 R2 Support

12.2(4)YB

No

Yes

No

Yes

Yes

No

Yes

T1 CAS

12.2(4)YB

No

Yes

No

Yes

Yes

No

Yes

T1/E1 Voice PRI Q.931 and PRI QSIG Protocol

12.2(4)YB

No

Yes

No

Yes

Yes

No

Yes

WAN
               

1- and 2-Port Analog Modem WIC

12.2(4)YB

Yes

Yes

Yes

Yes

Yes

Yes

Yes

G.SHDSL WIC

12.2(4)XL7

12.2(4)YB3

Yes

Yes

Yes

Yes

Yes

Yes

No

1 In Cisco IOS Release 12.2(2)XT, the feature name "Cisco IP Keyswitch Version 2.0" changed to "Cisco IOS Telephony Service Version 2.0" and the command mode changed from "keyswitch-configuration mode" to "telephony-service configuration mode".

2 This feature was introduced on Cisco 1751 routers in Release 12.2(2)XT.

3 This feature was introduced on Cisco 1760 routers in Release 12.2(4)YB.

4 This feature is supported on Cisco 1760 routers on Release 12.2(4)YB and above only. Release 12.2(4)XM does not support this feature on Cisco 1760 routers.

5 For a list of the SIP features, see Table 2, Footnote 1

6 For a list of the MGCP features, see Table 2, Footnote 2

7 This feature was introduced on Cisco 1720, 1750, and 1751 routers in Release 12.2(4)XL.


New and Changed Information

The following sections list the new hardware and software features supported by the Cisco 1700 series routers for Release 12.2(4)YB.

New Hardware Features in Release 12.2(4)YB

The following sections describe the new hardware features supported by the Cisco 1700 series routers for Release 12.2(4)YB.

1- and 2-Port Analog Modem WIC

Release 12.2(4)YB supports 1- and 2-port analog modem WAN Interface Cards (with part numbers WIC-1AM and WIC-2AM, respectively) on Cisco 1720, 1721, 1751, and 1760 routers. The interface cards provide basic telephone service connectivity for remote router management; asynchronous Dial-on-Demand Routing (DDR) and dial backup; dial- and fax-out modem access; and low-density remote access server (RAS) services.

This feature supports the following functionality:

Internal analog modem dialup capability

Support for speeds up to 56K (V.90 specification)

Support for MLPPP, which allows for bonding of two or more calls for increased connection speeds

Fax-out capability at speeds up to 14.4K

1- and 2-Port T1/E1 Multiflex Voice/WAN Interface Card

Release 12.2(4)YB introduces 1- and 2-port T1/E1 Multiflex Voice/WAN interface cards (VWICs) to provide basic structured and unstructured service for T1 or E1 networks on the Cisco 1700 series routers. These VWIC interface cards (voice interface card [VIC] + WAN interface card [WIC]) combine the accessibility of a WIC and the functionality of a VIC, to deliver a multi-service solution that integrates voice and data over a single circuit.

The following T1/E1 VWICS are available for the Cisco 1751 and Cisco 1760 routers:

VWIC-1MFT-E1

VWIC-2MFT-E1

VWIC-1MFT-T1

VWIC-2MFT-T1

VWIC-1MFT-G703

VWIC-2MFT-G703

VWIC-2MFT-T1-DI

VWIC-2MFT-E1-DI


Note Prior to Release 12.2(4)YB, these cards were supported on the Cisco 2600 and Cisco 3600 routers only.


The T1 and E1 VWICs provide individual DS0s or channels of a DS1 circuit to be grouped together to create channel groups. For example, the first 12kb to 64kb channels of a T1 circuit could form a channel group for signals sent to a frame relay network.

Drop and Insert (DI) VWICs have two T1/E1 ports. In addition to the functionality described above, the DI VWICs enable specified DS0 channels from one port to be directly cross-connected to another port. For example, the first three DS0s of one port can be directly cross-connected to the first three DS0s of a second port. The remaining DS0s can support signals to or from other interfaces on the router. DI VWICs provide easy multiplexing of voice and data over a single circuit, within two locals ports of a T1/E1 DI VWIC.

The G.703 VWICs support unframed and framed E1 circuits. Other E1 WICs support only framed E1 circuits.

With these Multiflex VWICs, Cisco 1751 and Cisco 1760 routers support fractional and full T1/E1 services and channelized T1/E1 voice services; that is: support for channel associated signaling on the T1 interface, E1 R2, T1/E1 Voice PRI Q.931, and PRI QSIG protocol. For additional information, see the section "Channelized Voice, Fractional, and Full T1 and E1 Services."

G.SHDSL WAN Interface

Release 12.2(4)YB supports the G-standard Symmetrical High bit-rate Digital Subscriber Loop (G.SHDSL) WAN interface card on Cisco 1760 series routers.


Note The G.SHDSL WAN interface card was introduced in Release 12.2(4)XL on the Cisco 1720, 1750, and 1751 routers. Release 12.2(4)YB additionally supports the card on the Cisco 1760 router.


New Software Features in Release 12.2(4)YB

The following sections describe the new software features supported by the Cisco 1700 series routers for Release 12.2(4)YB.

Cisco IOS Telephony Service

Release 12.2(4)YB supports the Cisco IOS Telephony Service (ITS) feature on Cisco 1760 routers. The Cisco IOS Telephony Service feature, a part of IP Telephony Services, provides basic Cisco IP phone call-handling capabilities in a LAN environment on the Cisco routers.


Note A previous software version, Release 12.2(4)XT, introduced Cisco ITS on select Cisco 1700 series routers, but Release 12.2(4)XT does not support Cisco ITS on Cisco 1760 routers.


This feature enables the Cisco multiservice routers to provide Cisco IOS Telephony Service for the Cisco IP Phone 7960, Cisco IP Phone 7940, Cisco IP Phone 7910, and Cisco IP Conference Station 7935. Cisco IOS Telephony Service also helps download phone software images and configures and manages the Cisco IP phones in a LAN, to accommodate the telephony system of a small office with a small number of extensions.


Note You need to purchase a feature license to turn this new feature on. You also need an account on Cisco.com to access the Cisco IP phone firmware versions.


For more information, see the document Cisco IOS Telephony Service:
http://www.cisco.com/univercd/cc/td/doc/product/access/ip_ph/srs/index.htm  

Channelized Voice, Fractional, and Full T1 and E1 Services

Release 12.2(4)YB includes the following software features to support the 1- and 2-port T1/E1 Multiflex VWICs, as described in the section "New Hardware Features in Release 12.2(4)YB":

Channel Associated Signaling on the T1 interface (T1 CAS)

CAS is a form of signaling used on a T1 line. With CAS, a signaling element is dedicated to each channel in the T1 frame. This type of signaling is sometimes called Robbed Bit signaling (RBS) because a bit is taken out (or robbed) from the user data stream to provide signaling information to and from the switch. The T1 CAS feature enables T1 VWICs to receive and transmit incoming and outgoing call signaling (such as on-hook and off-hook) through each T1 controller that is configured for a channelized T1 line.

E1 R2 support for Cisco 1700 series routers

Release 12.2(4)YB supports R2 signaling, which provides gateway functionality between the real-time circuit-switched world (PSTN) and the packet-switched-data networks. The R2 signaling is an international signaling standard that is common to channelized E1 networks. There is no single standard for R2 signaling. The ITU-T Q.400-Q.490 recommendation defines R2, but a number of countries implement R2 in entirely different ways. Cisco 1751 and Cisco 1760 routers use E1 R2 signaling to communicate with central office trunks that also use E1 R2 signaling.

Release 12.2(4)YB supports the following implementations of R2 signaling:

Argentina

Greece

Paraguay

Australia

Guatemala

Peru

Bolivia

Hong Kong (China variant)

Philippines

Brazil

India

Saudi Arabia

Bulgaria

Indonesia

Singapore

China

Israel

South Africa Panaftel

Colombia

ITU

Telmex

Costa Rica

Korea

Telnor

Croatia

LAOS Network (Thailand variant)

Thailand

East Europe

Malaysia

Uruguay

Ecuador ITU

Malta

Venezuela

Ecuador LME

New Zealand

Vietnam


T1/E1 Voice PRI Q.931 and PRI QSIG protocol

The QSIG protocol provides signaling for Private Integrated services Network Exchange (PINX) devices. It is based on the ISDN Q.931 standard. By supporting PRI QSIG voice signaling, Cisco 1751 and Cisco 1760 routers can connect with digital PBXs that use the QSIG form of Common Channel Signaling (CCS). PRI QSIG signaling provides transparent support for supplementary PBX services so that proprietary PBX features are not lost when connecting PBXs to Cisco 1751 and Cisco 1760 networks.

Quality of Service for Virtual Private Networks

When packets are encapsulated by tunnel or encryption headers, Quality of Service (QoS) features are unable to examine the original packet headers and correctly classify the packets. Packets traveling across the same tunnel have the same tunnel headers, so the packets are treated identically if the physical interface is congested.

With the growing popularity of Virtual Private Networks (VPNs), the need to classify traffic within a traffic tunnel is gaining importance. QoS features have historically been unable to classify traffic within a tunnel. With the introduction of the Quality of Service for Virtual Private Networks (QoS for VPNs) feature, packets can now be classified before tunneling and encryption occur. The process of classifying features before tunneling and encryption is called preclassification.

The QoS for VPNs feature is designed for tunnel interfaces. When the new feature is enabled, the QoS features on the output interface classify packets before encryption, allowing traffic flows to be adjusted in congested environments. The end result is more effective packet tunneling.

The QoS for VPNs feature provides a solution for making Cisco IOS Quality of Service services operate in conjunction with tunneling and encryption on an interface. Cisco IOS software can classify packets and apply the appropriate QoS service before the data is encrypted and tunneled. In addition, when packets are marked using the IP Type of Service byte or differentiated services code point (DSCP) values, the markings are copied to the new, encrypted packet. This allows the service provider to treat mission critical or multi-service traffic with higher priority across their network.

New Software Features Supported on Cisco 1760 Routers

Release 12.2(4)YB supports the following software features on Cisco 1760 routers:

T.38 fax relay

CAC for VoIP call

DiffServ for voice signaling traffic

G.728 codec support

Modem pass through over VoIP

MGCP features

MGCP 1.0

MGCP based fax (T.38) and DTMF relay

MGCP basic CLASS and operator services

MGCP VoIP call admission control

RTSP enhanced IVR

SIP features

Call transfer capabilities using the refer method

Configurable PSTN cause code to SIP response

Gateway support for bind command

ISDN progress indicator support for SIP using 183 session progress

NAT support for SIP

RFC2782 compliance for DNS SRV

SIP

SIP diversion header implementation for redirecting number

SIP DTMF relay using NTE

SIP for VoIP enhancements

SIP gateway support for third party call control

SIP gateway support of RSVP and "tel" URL

SIP intra-gateway hairpinning

SIP INVITE request with malformed via header

SIP T.38 fax relay

SIP user agent MIB

T.37 fax relay

TCL scripting for IVR

Survivable Remote Site Telephony Version 2.0

Cisco IOS Telephony Service


Note A previous software version, Release 12.2(4)XM, introduced these features on select Cisco 1700 series routers, but Release 12.2(4)XM does not support the features on Cisco 1760 routers.


For SRST configuration information, see the Survivable Remote Site Telephony publication on Cisco.com and the Documentation CD at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/access/ip_ph/srs/ 

This URL is subject to change without notice. If it changes, point your web browser to CCO, and click the following path:
Cisco Product DocumentationAccess Servers and Access Routers: IP Phone Features: 

For Cisco IOS telephony service configuration information, see the Cisco IOS Telephony Service publication on Cisco.com and the Documentation CD at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/access/ip_ph/ip_ks/ipkey2.htm 

These URLs are subject to change without notice. If they change, point your web browser to CCO, and click the following path:
Cisco Product DocumentationAccess Servers and Access Routers: IP Phone Features:  [Cisco IOS Telephony Service or Survivable Remote Site Telephony] 

Network Timing Recovery

Release 12.2(4)YB supports Network Timing Recovery (NTR) for configuring the clock source and associated dependencies on Cisco 1751 and Cisco 1760 routers. For configuration information, see the publication TDM Clock Configuration for Cisco 1700 Series Routers. This document is available on CCO and on the Cisco Documentation CD.

New Software Features in Release 12.2(4)T

For information regarding the features supported in Cisco IOS Release 12.2 T, refer to the Cross-Platform Release Notes and New Feature Documentation links at the following location on CCO:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122relnt/xprn122t/index.htm 

This URL is subject to change without notice. If it changes, point your web browser to CCO, and click the following path:

Service & Support: Technical Documents: Cisco IOS Software: Release 12.2: Release Notes:  Cross-Platform Release Notes (Cisco IOS Release 12.2T) 

Limitations

The following restrictions in Release 12.2(4)YB apply to channelized voice, fractional, and full T1 and E1 services:

PRI is supported in the VWIC slot only. The signal channel of PRI is handled the same way as the data channel, which is only supported in the VWIC slot.

PRI-NFAS is not supported.

Drop and Insert for E1 voice with R2 signaling is not supported.

Important Notes

The following sections contain important notes about Cisco IOS Release 12.2(4)YB that can apply to the Cisco 1700 series routers. (Also, see the "Caveats" section.)

1- and 2-Port Analog Modem WIC

The following issues apply to the 1- and 2-Port Analog Modem WIC:

When a Cisco 1700 series router boots up, the default configuration is flowcontrol hardware. You can change this configuration if needed.

The 1- and 2-Port Analog Modem WIC is not supported on Cisco 1710 and Cisco 1750 routers.

Fan Operation in Cisco 1700 Series Routers

Cisco 1760 and 1760-V router fans are always on and Cisco 1710 routers do not contain a fan. However, the fans in Cisco 1720, 1721, 1750, and 1751 routers stay off until thermally activated.

Flash defaults to Flash:1 on Multipartition Flash

When using a multipartition flash card, the various flash partitions are referred to as "flash:1:", "flash:2:", etc. If you specify only "flash" in a multipartition flash, the parser assumes "flash:1:." For example, if you enter show flash all the parser defaults to "show flash:1: all" and only the flash information for the first partition displays. To see information for all flash partitions, enter show flash ?. This will list all of the valid partitions. Then enter show flash:xx: all on each valid partition.

Peak Cell Rate and Sustainable Cell Rate Values

On Cisco 1700 routers, specify the Peak Cell Rate (PCR) and Sustainable Cell Rate (SCR) as multiples of 32 Kbps. Other rates are treated as the next lower value of a multiple of 32. For example, an entered PCR value of 150 is considered 128.

Using the "boot flash" and "boot system tftp" Commands

Booting a Cisco 1700 series router with the commands boot flash or boot system flash results in unpredictable behavior. To work around this problem, be sure to enter a colon (:) following both commands (for example, boot flash: or boot system flash:.)

Booting a Cisco 1700 series router using the command boot system tftp might not work due to insufficient memory. To work around this problem, use the command tftpdnld from the ROM monitor. This error is caveat number CSCdv87983.

Caveats

Caveats describe unexpected behavior or defects in Cisco IOS software releases. Severity 1 caveats are the most serious caveats, severity 2 caveats are less serious, and severity 3 caveats are the least serious of these three severity levels.

Caveats in Release 12.2 T are also in Release 12.2(4)YB. For information on caveats in Cisco IOS Release 12.2 T, refer to the Caveats for Cisco IOS Release 12.2 T document. For information on caveats in Cisco IOS Release 12.2, refer to the Caveats for Cisco IOS Release 12.2 document. These documents list severity 1 and 2 caveats, and are located on CCO and the Documentation CD.


Note If you have an account with Cisco.com, you can also use the Bug Toolkit to find select caveats of any severity. To reach the Bug Toolkit, log in toCisco.com and click Service & Support: Technical Assistance Center: Tool Index: Bug Toolkit. Another option is to go to http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl. 


Resolved Caveats - Release 12.2(4)YB

This section describes unexpected behavior that is fixed in Release 12.2(4)YB.

Management

CSCdw65903

An error can occur with management protocol processing. Please use the following URL for further information:

http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdw65903 

Unresolved Caveats - Release 12.2(4)YB

This section describes unexpected behavior in Release 12.2(4)YB.

Miscellaneous

CSCdv87983

Booting a Cisco 1700 series router using the command boot system tftp might not work due to insufficient memory. To work around this problem, use the command tftpdnld from the ROM monitor.

Multiservice Applications

CSCdw86539

To properly shutdown MGCP, first shut the voice port associated with MGCPAPP and then issue the command no mgcp. If the voice port is not shut, issuing the command no mgcp causes MGCP processes to shut down incorrectly. This has been observed when RQNT with embedded notifications is issued by the call agent.

CSCdw84683

A failure occurs if you attempt to make fax calls (T.38 or passthrough) through MGCP. Although some fax calls might be sent through the speed-up mechanism successfully, subsequent fax calls might fail. A workaround is to use G.711 as the codec with fax passthrough.

Voice

CSCdv25550

Excessive CRC errors might occur if traffic passes over a T1/E1 interface before the router is completely booted up. To work around this problem, clear the counters.

CSCdw73302

The default IVR applies to the configured translation rule multiple times. In other words, when using a TCL IVR 2.0 application on a Cisco voice gateway for two-stage calls, the configured translation rule might be applied for each received digit instead of for the initial digit only.

CSCdw85359

When the station-id on an FXO port is not set, the Caller-ID displays "From Private...." instead of the actual number for a local transfer call. To display the correct output, configure the station-id on the FXO port of the ITS router.

CSCdw86971

The call-forward-no-answer of an inbound VoIP call—via a loopback-dn to a local IP phone that is forwarded on no-answer to a remote VoIP target to create a VoIP hairpin on the loopback—results in no voice path when the forwarded call is answered.

WAN

CSCdv33932

When using the ATM-MIB on a Cisco 1700 series router with a G.SHDSL WAN interface card, the object table aal5VccTable does not become populated. Performing an SNMP query returns no response.

Related Documentation

The documentation available for the Cisco 1700 series routers typically consists of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents. Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on Cisco.com and the Documentation CD. Use these release notes with the related documents listed in the sections: "Release-Specific Documents" and "Platform-Specific Documents."

Additionally, the Cross-Platform Release Notes for Cisco IOS Release 12.2 T contains the latest descriptions and locations of the following types of documents. See the section "Release-Specific Documents," for the location of the Cross-Platform Release Notes for Cisco IOS Release 12.2 T.

Feature Modules—Feature modules describe new features supported by Release 12.2 and are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, configuration tasks, and a command reference.

Feature Navigator—Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS software images support a particular set of features and which features are supported in a particular Cisco IOS image.

Cisco IOS Software Documentation Set—The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents.

Release-Specific Documents

The following documents are specific to Release 12.2 and apply to Release 12.2(4)YB. They are located on Cisco.com and the Documentation CD (under the heading Service & Support):

To reach the Release Notes for the Cisco 1700 Series Routers for Cisco IOS  Release 12.2(4)YB,  click this path:

Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cisco 1700 Series  Routers: Cisco 1700 Series - Release Notes for Release 12.2(4)YB 

To reach the Cross-Platform Release Notes for Cisco IOS Release 12.2 T, click this path:

Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cisco IOS  Release 12.2 T 

To reach product bulletins, field notices, and other release-specific documents, click this path:

Technical Documents: Product Bulletins 

To reach the Caveats for Cisco IOS Release 12.2 and Caveats for Cisco IOS Release 12.2 T  documents, which contain caveats applicable to all platforms for all maintenance releases of Release 12.2, click this path:

Technical Documents: Cisco IOS Software: Release 12.2: Caveats 


Note If you have an account with Cisco.com, you can also use the Bug Toolkit to find select caveats of any severity. To reach the Bug Toolkit, log in toCisco.com and click Service & Support: Technical Assistance Center: Tool Index: Bug Toolkit. Another option is to go to http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl. 


Platform-Specific Documents

Hardware installation guides, configuration and command reference guides, and additional documents specific to Cisco 1700 series routers are available on Cisco.com and the Documentation CD at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/1700/index.htm 

This URL is subject to change without notice. If it changes, point your web browser to CCO, and click the following path:

Cisco Product Documentation: Access Servers and Access Routers: Modular  Access RoutersCisco 1700 Series Routers: <platform_name>

Obtaining Documentation and Technical Assistance

The Cross-Platform Release Notes for Cisco IOS Release 12.2 T contains the latest descriptions and locations of the following sources for obtaining documentation and technical assistance from Cisco Systems. See the section "Release-Specific Documents" for the location of the Cross-Platform Release Notes for Cisco IOS Release 12.2 T.

World Wide Web, Cisco.com—Cisco Systems website: http://www.cisco.com.

Documentation CD—Cisco documentation and additional literature are available in a CD package, which ships with your product.

Ordering documentation—Methods for ordering documentation include Networking Products MarketPlace, the online Subscription Store, and calling a local account representative using the Cisco corporate headquarters or North America phone numbers.

Documentation feedback—When using the World Wide Web, you can submit technical comments electronically. You can also send e-mail, mail in the response card that is behind the front cover of many documents, or send correspondence to Cisco Systems. We appreciate your comments.

Technical Assistance Center (TAC)—The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract. You can contact the TAC using Cisco.com or by phone. Toll-free numbers are available for many countries.