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Cisco Unified IP Phone 7900 Series

Cisco IP Phone 7905G/7912G (SIP) Release Notes for Firmware Release 1.3.0

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Cisco IP Phone 7905G/7912G (SIP) Release Notes for Firmware Release 1.3.0

Table Of Contents

Cisco IP Phone 7905G/7912G (SIP) Release Notes for Firmware Release 1.3.0

Installing Required Firmware for the Cisco IP Phone

Related Documentation

What's New in this Release

What's New in Release 1.2.0

Resolved Defects

Obtaining Documentation

Cisco.com

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco TAC Website

Opening a TAC Case

TAC Case Priority Definitions

Obtaining Additional Publications and Information


Cisco IP Phone 7905G/7912G (SIP) Release Notes for Firmware Release 1.3.0


These release notes are for use with the Cisco IP Phone models 7905G and 7912G running under the Session Initiation Protocol (SIP) and running software release 1.3.0.

These release notes include the following sections:

Installing Required Firmware for the Cisco IP Phone

Related Documentation

What's New in this Release

What's New in Release 1.2.0

Resolved Defects

Obtaining Documentation

Documentation Feedback

Obtaining Technical Assistance

Obtaining Additional Publications and Information

Installing Required Firmware for the Cisco IP Phone

Before using a Cisco IP Phone model 7905G or 7912G with SIP, you must install the appropriate firmware on the phone. Refer to the Readme.txt file that is included with the phone software package for more information.

Related Documentation

For more information about Cisco IP Phones, refer to the following publications, which are available at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/index.htm

Cisco IP Phone 7905G/7912G User Guide for Cisco CallManager

Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)

Regulatory Compliance and Safety Information for the Cisco IP Phone 7900 Series

What's New in this Release

Software release 1.3.0 includes the following new and enhanced features:

This release supports both versions of the Cisco IP Phone 7912G (CP-7912G and CP-7912G-A).

RFC 3261 enhancements:

Loose-routing support.

Addition of branch parameter in Via header.

RFC 3262 PRACK support—Phones support PRACK based on RFC 3262.

RFC 3264 Offer/Answer support—Phones support the offer and answer model based on RFC 3264.

RFC 3311 UPDATE method support—Phones support handling a SIP UPDATE request but do not initiate an UPDATE request.

Call Forward on Busy support—Allows a phone user to specify a phone number to which all calls are immediately forwarded when the user's line is busy. To specify the telephone number, press the Menu button and choose Settings > Call Preferences > Call Forward On Busy Number.

Bit 27 of the CallPrefGuiShow, GUI Show Mask, CallPrefGuiSet, and GUI Set Mask parameters has been defined for the new Call Forward On Busy feature. The CallPrefGuiShow and the GUI Show Mask parameters control the feature options that are displayed on the Call Preferences menu on a phone. The CallPrefGuiSet and the GUI Set Mask parameters specify which parameters on the Call Preferences menu on the phone can be changed by an end user.

Configurable request and response retransmissions support.

The MsgRetryLimits parameter lets you configure the number of times that a phone retransmits various SIP requests to the current proxy and the number of times that a phone sends responses to specific requests from the SIP user agent.

When the phone sends a SIP message to the remote SIP user agent, the message does not always reach its destination for various reasons. In this event, the phone retries sending the same message a specified number of times before timing out.

The number of retries is configurable for the following SIP requests:

REGISTER

INVITE

BYE

CANCEL

REFER

NOTIFY

PRACK

The number of retries also is configurable for the phone's final response to an INVITE request from the SIP user agent.

Table 1 describes how to configure the MsgRetryLimits parameter. For this parameter:

Value type—Bitmap

Default value—0x00000000

Table 1 MsgRetryLimits Parameter 

Bit Number
Definition

0 - 3

Number of times to retransmit the following SIP requests or responses to the SIP user agent:

NOTIFY request

PRACK request

Final response to an INVITE request

Range: 0 - 15

Default value: 0

With the default setting, the following retransmission attempts are used:

NOTIFY request: 6

PRACK request: 5

INVITE final response: 7

4 - 7

Number of times to retransmit REGISTER request.

Default value: 0 (number of attempts is 10).

8 - 11

Number of times to retransmit INVITE request.

Default value: 0 (number of attempts is 2).

12 - 15

Number of times to retransmit BYE request.

Default value: 0 (number of attempts is 4).

16 - 19

Number of times to retransmit CANCEL request.

Default value: 0 (number of attempts is 4).

20 - 23

Number of times to retransmit REFER request.

Default value: 0 (number of attempts is 5).

24 - 31

Reserved. The value of these bits must be 0.


Support for disabling the Time and Date display

This release allows you to disable the time and/or date display on the phone. To disable the time and/or date display, configure the value of the appropriate parameter to zero (0).

What's New in Release 1.2.0

The previous software release, 1.2.0, for Cisco IP Phone models 7905G and 7912G running under SIP included the following new and enhanced features. For detailed information about these features, refer to Cisco IP Phone 7905G/7912G (SIP) Release Notes for Firmware Release 1.2.0, which is available at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/english/
ipp7905g/addprot/relnotes/rnsip120.htm

Additional time zones support—TimeZone parameter enhanced to provide support for time zones that are offset by increments of 30 minutes and 45 minutes

D rule for displaying called ID—D rule added to the DialPlan parameter

R rule for enhanced prefix—R rule added to the DialPlan parameter

Advanced Syntax for Dial Plan Rules—Provides commands to specify the called number in the D dial plan rule and the trigger string in the R dial plan rule

G.729 Annex B support—Phones indicate G.729 Annex B codec support by using a=fmtp and a=rtpmap attribute in the SDP body of outgoing INVITE requests and 183 and 200 responses to INVITE requests

Selectable host target for forwarded calls—Allows setting bit 0 in the ConnectMode parameter to designate the destination of the new INVITE request that results from a forwarded call

EncryptKeyEx parameter—Provides a stronger configuration file encryption key than the previous EncryptKey parameter

New cfgfmt tool—Supports a stronger encryption method than the previous release of this tool

Resolved Defects

Table 2 describes Severity 1, 2, and 3 defects that were resolved in this release.

Table 2 Defects Resolved in this Release 

Identifier
Headline

CCSef19597

BlindXfer softkey should not appear in the Hold menu

CSCeb73369

Simultaneous hold/unhold does not work with Cisco IP Phone 7905G/7912G

CSCed43171

Loose router not supported

CSCed60046

Call should wait for NOTIFY with 200 OK before sending BYE

CSCee62912

Malformed ACK sent and no subsequent BYE after CANCEL

CSCee75085

Cisco IP Phone 7905G/7912G cannot do IP reassembly correctly

CSCef18925

Phone reboots when changing from alpha to numeric mode

CSCef22374

Phone does not include To: tag in the Replaces header

CSCef35944

Phone gets in hung state when re-INVITE to hold times out

CSCef57781

Cisco IP Phone 7905G/7912G crash trying reestablish bogus audio codec value of -1

CSCef72768

Issue with ACK Req-URI after receiving 487 Request Cancelled

CSCeg04763

Phone fails to clear DNS cache when the TTL in DNS response expires

CSCeg21848

Reserved character # is not escaped in Request-URI

CSCeg40371

Missing Contact header in NOTIFY

CSCeg43626

Phone does not accept DHCP ACK sent to the broadcast address

CSCeg59743

Phone does not add 802.1p tag when no VLAN is configured

CSCeg62524

TFTP fw upgrade does not work after **#** phone reboot

CSCeg77992

501 response sent to NOTIFY resulting in call transfer failure

CSCef24541

Secondary dial tone is not played

CSCsa64109

Time and Date cannot be omitted on the screen via profile

CSCsa66497

Unsuccessful consultation call transfer caused by incorrect Refer-To URI

CSCsa72198

423 response with Min-Expires value greater than 3600 is ignored

CSCsa73943

R Enhanced prefix rule does not work

CSCsa86940

The Cisco IP Phone 7912 for SIP reboots when the combined number of characters for a phone number and name is exceeded


Obtaining Documentation

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Cisco.com

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Ordering Documentation

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We appreciate your comments.

Obtaining Technical Assistance

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Opening a TAC Case

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For P1 or P2 cases (P1 and P2 cases are those in which your production network is down or severely degraded) or if you do not have Internet access, contact Cisco TAC by telephone. Cisco TAC engineers are assigned immediately to P1 and P2 cases to help keep your business operations running smoothly.

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TAC Case Priority Definitions

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Priority 1 (P1)—Your network is "down" or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.

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Priority 4 (P4)—You require information or assistance with Cisco product capabilities, installation, or configuration. There is little or no effect on your business operations.

Obtaining Additional Publications and Information

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