Cisco IOS Software Releases 12.2 T

Table Of Contents

Configurable PSTN Cause Code to SIP Response Mapping

Feature Overview

Default Mappings

Benefits

Related Features and Technologies

Related Documents

Supported Platforms

Supported Standards, MIBs, and RFCs

Prerequisites

Configuration Tasks

Mapping PSTN Codes to SIP Status Codes

Mapping SIP Status Codes to PSTN Cause Codes

Verifying PSTN and SIP Code Mapping

Verifying PSTN Cause Code to SIP Status Code Mapping

Verifying SIP Cause Code to PSTN Status Code Mapping

Troubleshooting Tips

Configuration Examples

Command Reference

set pstn-cause

set sip-status

show sip-ua map

Glossary

Configurable PSTN Cause Code to SIP Response Mapping

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Document Update Alert

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This document was originally produced for Cisco IOS Release 12.2(11)T. This feature has been updated in subsequent releases, and more recent documentation is available.

If you are using Cisco IOS Release 12.2(11)T or higher, refer to the following section in the Configuring SIP Message Components, Session Timers, and Responses chapter of the Cisco IOS SIP Configuration Guide, Cisco IOS Voice Configuration Library, Release 12.3:

•Configurable PSTN Cause Code to SIP Response Mapping

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Feature History

Release	Modification
12.2(2)XB	This feature was introduced on the Cisco 2600 series, Cisco 3600 series, Cisco 7200 series, Cisco AS5300, Cisco AS5350, and Cisco AS5400 platforms.
12.2(2)XB2	This feature was introduced on the Cisco AS5850 universal gateway.
12.2(8)T	This feature was integrated into Cisco IOS Release 12.2(8)T. The Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 platforms were not supported in this release.
12.2(11)T	This feature was integrated into Cisco IOS Release 12.2(11)T and support was added for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 platforms.

This document describes Configurable PSTN Cause Code to SIP Response Mapping in Cisco IOS Release 12.2(11)T. This feature allows customization of the standard RFC 2543 mappings between the Session Initiation Protocol (SIP) and the Public Switched Telephone Network (PSTN) networks.

•Feature Overview

•Supported Platforms

•Supported Standards, MIBs, and RFCs

•Prerequisites

•Configuration Tasks

•Configuration Examples

•Command Reference

•Glossary

Feature Overview

For calls to be established between a SIP network and a PSTN network, the two networks must be able to interoperate. One aspect of their interoperation is the mapping of PSTN cause codes, which indicate reasons for PSTN call failure or completion, to SIP status codes or events. The opposite is also true: SIP status codes or events are mapped to PSTN cause codes. Event mapping tables found in this document show the standard or default mappings between SIP and PSTN.

However, you may want to customize the SIP user agent software to override the default mappings between the SIP and PSTN networks. The Configurable PSTN Cause Code to SIP Response Mapping feature allows you to configure specific map settings between the PSTN and SIP networks. Thus, any SIP status code can be mapped to any PSTN cause code, or vice versa.

When set, these settings can be stored in the NVRAM and are restored automatically on bootup.

Default Mappings

The following table lists PSTN cause codes and the corresponding SIP event mappings that are set by default. Any code other than the codes listed are mapped by default to 500 Internal server error.

Table 1 Default PSTN Cause Code to SIP Event Mappings 

PSTN Cause Code	Description	SIP Event
1	Unallocated number	404 Not found
2	No route to specified transit network	404 Not found
3	No route to destination	404 Not found
17	User busy	486 Busy here
18	No user response	480 Temporarily unavailable
19	No answer from the user
20	Subscriber absent
21	Call rejected	403 Forbidden
22	Number changed	410 Gone
26	Non-selected user clearing	404 Not found
27	Destination out of order	404 Not found
28	Address incomplete	484 Address incomplete
29	Facility rejected	501 Not implemented
31	Normal, unspecified	404 Not found
34	No circuit available	503 Service unavailable
38	Network out of order	503 Service unavailable
41	Temporary failure	503 Service unavailable
42	Switching equipment congestion	503 Service unavailable
47	Resource unavailable	503 Service unavailable
55	Incoming class barred within Closed User Group (CUG)	403 Forbidden
57	Bearer capability not authorized	403 Forbidden
58	Bearer capability not presently available	501 Not implemented
65	Bearer capability not implemented	501 Not implemented
79	Service or option not implemented	501 Not implemented
87	User not member of Closed User Group (CUG)	503 Service Unavailable
88	Incompatible destination	400 Bad request
95	Invalid message	400 Bad request
102	Recover on Expires timeout	408 Request timeout
111	Protocol error	400 Bad request
Any code other than those listed above:		500 Internal server error

The following table lists the SIP events and the corresponding PSTN cause codes mappings that are set by default.

Table 2 Default SIP Event to PSTN Cause Code Mapping 

SIP Event	PSTN Cause Code	Description
400 Bad request	127	Interworking, unspecified
401 Unauthorized	57	Bearer capability not authorized
402 Payment required	21	Call rejected
403 Forbidden	57	Bearer capability not authorized
404 Not found	1	Unallocated number
405 Method not allowed	127	Interworking, unspecified
406 Not acceptable
407 Proxy authentication required	21	Call rejected
408 Request timeout	102	Recover on Expires timeout
409 Conflict	41	Temporary failure
410 Gone	1	Unallocated number
411 Length required	127	Interworking, unspecified
413 Request entity too long
414 Request URI (URL) too long
415 Unsupported media type	79	Service or option not implemented
420 Bad extension	127	Interworking, unspecified
480 Temporarily unavailable	18	No user response
481 Call leg does not exist	127	Interworking, unspecified
482 Loop detected
483 Too many hops
484 Address incomplete	28	Address incomplete
485 Address ambiguous	1	Unallocated number
486 Busy here	17	User busy
487 Request cancelled	127	Interworking, unspecified
488 Not acceptable here	127	Interworking, unspecified
500 Internal server error	41	Temporary failure
501 Not implemented	79	Service or option not implemented
502 Bad gateway	38	Network out of order
503 Service unavailable	63	Service or option unavailable
504 Gateway timeout	102	Recover on Expires timeout
505 Version not implemented	127	Interworking, unspecified
580 Precondition Failed	47	Resource unavailable, unspecified
600 Busy everywhere	17	User busy
603 Decline	21	Call rejected
604 Does not exist anywhere	1	Unallocated number
606 Not acceptable	58	Bearer capability not presently available

Benefits

The Configurable PSTN Cause Code to SIP Response Mapping feature offers control and flexibility. By using command-line interface commands, you can easily customize the default or standard mappings that are currently available between PSTN and SIP networks. This allows for flexibility when setting up deployment sites.

Related Features and Technologies

•Cisco SIP Proxy Server

•Cisco VoIP

Related Documents

The following documents contain information related to the Cisco SIP functionality:

•Cisco IOS Voice, Video, and Fax Configuration Guide,  Release 12.2

•Cisco IOS Voice, Video, and Fax Command Reference,  Release 12.2

•Cisco IOS IP Configuration Guide,  Release 12.2

•Cisco IOS IP Command Reference, Volume 1 of 3: Addressing and Services,  Release 12.2

•Cisco IOS IP Command Reference, Volume 2 of 3: Routing Protocols,  Release 12.2

•Cisco IOS IP Command Reference, Volume 3 of 3: Multicast,  Release 12.2

•SIP Gateway Support of RSVP and TEL URL, Release 12.2(2)XB

Supported Platforms

•Cisco 2600 series

•Cisco 3600 series

•Cisco AS5300 universal access server

•Cisco AS5350 universal gateway

•Cisco AS5400 universal gateway

•Cisco AS5850 universal gateway

•Cisco 7200 series

Table 3 Cisco IOS Release and Platform Support for this Feature

Platform	12.2(2)XB	12.2(2)XB2	12.2(8)T	12.2(11)T
Cisco 2600 series	X	X	X	X
Cisco 3600 series	X	X	X	X
Cisco 7200 series	X	X	X	X
Cisco AS5300 universal access server	X	X	Not supported	X
Cisco AS5350 universal gateway	X	X	Not supported	X
Cisco AS5400 universal gateway	X	X	Not supported	X
Cisco AS5850 universal gateway	Not supported	X	Not supported	X

Determining Platform Support Through Cisco Feature Navigator

Cisco IOS software is packaged in feature sets that support specific platforms. To get updated information regarding platform support for this feature, access Cisco Feature Navigator. Cisco Feature Navigator dynamically updates the list of supported platforms as new platform support is added for the feature.

Cisco Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS software images support a specific set of features and which features are supported in a specific Cisco IOS image. You can search by feature or release. Under the release section, you can compare releases side by side to display both the features unique to each software release and the features in common.

To access Cisco Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, send a blank e-mail to cco-locksmith@cisco.com. An automatic check will verify that your e-mail address is registered with Cisco.com. If the check is successful, account details with a new random password will be e-mailed to you. Qualified users can establish an account on Cisco.com by following the directions at http://www.cisco.com/register.

Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following URL:

http://www.cisco.com/go/fn

Availability of Cisco IOS Software Images

Platform support for particular Cisco IOS software releases is dependent on the availability of the software images for those platforms. Software images for some platforms may be deferred, delayed, or changed without prior notice. For updated information about platform support and availability of software images for each Cisco IOS software release, refer to the online release notes or, if supported, Cisco Feature Navigator.

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Note As of Cisco IOS Release 12.2(2)XB, Cisco Feature Navigator does not support features included in this limited-lifetime release.

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Supported Standards, MIBs, and RFCs

Standards

No new or modified standards are supported by this feature.

MIBs

•CISCO-SIP-UA-MIB

To obtain lists of supported MIBs by platform and Cisco IOS release, and to download MIB modules, go to the Cisco MIB web site on Cisco.com at the following URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.

RFCs

•RFC 2543, SIP: Session Initiation Protocol

Prerequisites

The following are general prerequisites for SIP deployment:

•Ensure that your Cisco 2600 series, Cisco 3600 series, or Cisco 7200 series router has 16-MB Flash memory and 64-MB DRAM memory, minimum. A Cisco AS5300 must have a minimum of 16-MB Flash memory and 128-MB DRAM memory. A Cisco AS5400 must have a minimum of 32-MB Flash memory and 256-MB DRAM memory.

•Ensure that the gateway has voice functionality that is configurable for SIP.

•Establish a working IP network.

For more information about configuring IP, refer to:
Cisco IOS IP Configuration Guide,  Release 12.2

•Configure VoIP.

For more information about configuring VoIP, refer to:
Cisco IOS Voice, Video, and Fax Command Reference,  Release 12.2

Configuration Tasks

See the following sections for configuration tasks for the Configurable PSTN Cause Code to SIP Response Mapping feature. Each task in the list is identified as either required or optional.

•Mapping PSTN Codes to SIP Status Codes (optional)

•Mapping SIP Status Codes to PSTN Cause Codes (optional)

Mapping PSTN Codes to SIP Status Codes

To configure an incoming PSTN cause code to a SIP status code, complete the following steps beginning in global configuration mode:

	Command	Purpose
Step 1	Router(config)# sip-ua	Enters the SIP user agent configuration mode.
Step 2	Router(config-sip-ua)# set pstn-cause value sip-status value	Sets a PSTN cause code to correspond with a SIP status code. pstn-cause value: Sets the value of the PSTN cause code. Range is 1-127. sip-status value: Sets the value of the SIP status code. Range is 400-699.
Step 3	Router(config-sip-ua)# exit	Exits the SIP user agent configuration mode.

Mapping SIP Status Codes to PSTN Cause Codes

To configure an incoming SIP status code to a PSTN cause code, complete the following steps beginning in global configuration mode:

	Command	Purpose
Step 1	Router(config)# sip-ua	Enters the SIP user agent configuration mode.
Step 2	Router(config-sip-ua)# set sip-status value pstn-cause value	Sets a SIP error status code to a PSTN cause code. sip-status value: Sets the value of the SIP status code. Range is 400-699. pstn-cause value: Sets the value of the PSTN cause code. Range is 1-127.
Step 3	Router(config-sip-ua)# exit	Exits the SIP user agent configuration mode.

Verifying PSTN and SIP Code Mapping

Verifying PSTN Cause Code to SIP Status Code Mapping

The following example shows sample output for the show sip-ua map command:

Router# show sip-ua map pstn-sip

PSTN-Cause   Configured        Default

             SIP-Status       SIP-Status

1               404             404

2               404             404

3               404             404

4               500             500

5               500             500

6               500             500

7               500             500

8               500             500

9               500             500

15              500             500

16              500             500

17              486             486

18              480             480

19              480             480

20              480             480

21              403             403

22              410             410

26              404             404

27              404             404

28              484             484

29              501             501

30              500             500

31              404             404

34              503             503

35              500             500

36              500             500

37              500             500

38              503             503

39              500             500

40              500             500

41              503             503

42              503             503

43              500             500

44              500             500

45              500             500

46              500             500

47              503             503

49              500             500

50              500             500

53              500             500

55              403             403

57              403             403

58              501             501

62              500             500

63              500             500

65              501             501

66              500             500

69              500             500

70              500             500

79              501             501

81              500             500

82              500             500

83              500             500

84              500             500

85              500             500

86              500             500

87              503             503

88              400             400

90              500             500

91              500             500

93              500             500

95              400             400

96              500             500

97              500             500

98              500             500

99              500             500

100             500             500

101             500             500

102             408             408

103             500             500

110             500             500

111             400             400

126             500             500

127             500             500

Verifying SIP Cause Code to PSTN Status Code Mapping

The following example shows sample output for the show sip-ua map command:

Router# show sip-ua map sip-pstn

SIP-Status   Configured        Default

             PSTN-Cause      PSTN-Cause

400             127             127

401             57              57

402             21              21

403             57              57

404             1               1

405             127             127

406             127             127

407             21              21

408             102             102

409             41              41

410             1               1

411             127             127

413             127             127

414             127             127

415             79              79

420             127             127

480             18              18

481             127             127

482             127             127

483             127             127

484             28              28

485             1               1

486             17              17

487             127             127

488             127             127

500             41              41

501             79              79

502             38              38

503             63              63

504             102             102

505             127             127

580             47              47

600             17              17

603             21              21

604             1               1

606             58              58

Troubleshooting Tips

Use the debug ccsip all command to enable all SIP debugging capabilities, or use one of the following SIP debug commands:

–debug ccsip calls

–debug ccsip error

–debug ccsip events

–debug ccsip messages

–debug ccsip states

Configuration Examples

This section shows the two commands that change the standard mappings between the SIP and PSTN networks. The commands set sip-status and set pstn-cause are highlighed in the following configuration.

Router# show running config

Building configuration...

Current configuration : 1564 bytes

!

version 12.2

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

!

hostname 3660-1

!

!

clock timezone GMT 0

voice-card 1

!

ip subnet-zero

!

!

ip domain-name sip.com

ip name-server 10.10.1.8

!

isdn switch-type primary-5ess

!

!

voice service voip 

 sip

!

!

!

!

no voice hpi capture buffer

no voice hpi capture destination 

!

fax interface-type fax-mail

mta receive maximum-recipients 0

!

controller T1 1/0

 framing esf

 linecode b8zs

 ds0-group 0 timeslots 1-24 type e&m-wink-start

 ds0 busyout 2-24

!

controller T1 1/1

 framing sf

 linecode ami

!

!

!

!

interface FastEthernet0/0

 no ip address

 shutdown

 duplex auto

 speed auto

!

interface FastEthernet0/1

 ip address 10.10.1.3 255.255.255.0

 duplex auto

 speed auto

 ip rsvp bandwidth 75000 75000

!

ip classless

ip route 0.0.0.0 0.0.0.0 FastEthernet0/1

ip http server

ip pim bidir-enable

!

!

!

!

call rsvp-sync

!

voice-port 1/0:0

 output attenuation 3

!

voice-port 2/0/0

!

voice-port 2/0/1

!

voice-port 2/1/0

!

voice-port 2/1/1

!

!

mgcp profile default

!

dial-peer cor custom

!

!

!

dial-peer voice 3640110 voip

 application session

 incoming called-number 3640110

 destination-pattern 3640110

 rtp payload-type nte 102

 session protocol sipv2

 session target ipv4:10.10.1.4

 dtmf-relay rtp-nte

 codec g711ulaw

!

dial-peer voice 3660110 pots

 application session

 destination-pattern 3660110

 port 2/0/0

!

sip-ua 

 set sip-status 486 pstn-cause 34

 set pstn-cause 17 sip-status 503

 no oli

!

!

line con 0

 exec-timeout 0 0

line aux 0

line vty 0 4

 login

!

!

end

Command Reference

This section documents new commands. All other commands used with this feature are documented in the Cisco IOS Release 12.2 command reference publications.

New Commands

•set pstn-cause

•set sip-status

•show sip-ua map

set pstn-cause

To map an incoming PSTN cause code to a SIP error status code, use the set pstn-cause command in SIP user agent configuration mode. To achieve default capabilities, use the no form of this command.

set pstn-cause value sip-status value

no set pstn-cause

Syntax Description

pstn-cause value	Sets the value of the PSTN cause code. The valid range is from 1 to 127.
sip-status value	Sets the value of the SIP status code that is to correspond with the PSTN cause code. The valid range of the SIP status code is from 400 to 699.

Defaults

The default mappings defined in the following table are used:

Table 4 Default PSTN Cause Code to SIP Event Mappings 

PSTN Cause Code	Description	SIP Event
1	Unallocated number	404 Not found
2	No route to specified transit network	404 Not found
3	No route to destination	404 Not found
17	User busy	486 Busy here
18	No user responding	480 Temporarily unavailable
19	No answer from the user
20	Subscriber absent
21	Call rejected	403 Forbidden
22	Number changed	410 Gone
26	Non-selected user clearing	404 Not found
27	Destination out of order	404 Not found
28	Address incomplete	484 Address incomplete
29	Facility rejected	501 Not implemented
31	Normal, unspecified	404 Not found
34	No circuit available	503 Service unavailable
38	Network out of order	503 Service unavailable
41	Temporary failure	503 Service unavailable
42	Switching equipment congestion	503 Service unavailable
47	Resource unavailable	503 Service unavailable
55	Incoming class barred within the Closed User Group (CUG)	403 Forbidden
57	Bearer capability not authorized	403 Forbidden
58	Bearer capability not presently available	501 Not implemented
65	Bearer capability not implemented	501 Not implemented
79	Service or option not implemented	501 Not implemented
87	User not member of the Closed User Group (CUG)	503 Service Unavailable
88	Incompatible destination	400 Bad request
95	Invalid message	400 Bad request
102	Recover on Expires timeout	408 Request timeout
111	Protocol error	400 Bad request
Any code other than those listed above:		500 Internal server error

Command Modes

SIP user agent configuration

Command History

Release	Modification
12.2(2)XB	This command was introduced.
12.2(2)XB2	This command was implemented on the Cisco AS5850 platform.
12.2(8)T	This command was integrated into Cisco IOS Release 12.2(8)T. The Cisco AS5300, Cisco AS5350, Cisco AS5850, and Cisco AS5400 platforms were not supported in this release.
12.2(11)T	This command was integrated into Cisco IOS Release 12.2(11)T and support was added for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 platforms.

Usage Guidelines

A PSTN cause code can be mapped only to one SIP status code at a time.

Examples

The following example shows how to map a SIP status code to correspond with a PSTN cause code:

Router(config)# sip-ua

Router(config-sip-ua)# set pstn-cause 111 sip-status 400

Router(config-sip-ua)# exit

Related Commands

Command	Description
set sip-status	Sets an incoming SIP error status code to a PSTN release cause code.

set sip-status

To map an incoming SIP error status code to a PSTN cause code, use the set sip-status command in SIP user agent configuration mode. To achieve default capabilities, use the no form of this command.

set sip-status value pstn-cause value

no set sip-status

Syntax Description

sip-status value	Sets the value of the SIP status code. The valid range is from 400 to 699.
pstn-cause value	Sets the value of the PSTN cause code that is to correspond with the SIP status code. The valid range of the PSTN cause code is from 1 to 127.

Defaults

The default mappings defined in the following table are used:

Table 5 Default SIP Event to PSTN Cause Code Mapping 

SIP Event	PSTN Cause Code	Description
400 Bad request	127	Interworking, unspecified
401 Unauthorized	57	Bearer capability not authorized
402 Payment required	21	Call rejected
403 Forbidden	57	Bearer capability not authorized
404 Not found	1	Unallocated number
405 Method not allowed	127	Interworking, unspecified
406 Not acceptable
407 Proxy authentication required	21	Call rejected
408 Request timeout	102	Recover on Expires timeout
409 Conflict	41	Temporary failure
410 Gone	1	Unallocated number
411 Length required	127	Interworking, unspecified
413 Request entity too long
414 Request URI (URL) too long
415 Unsupported media type	79	Service or option not available
420 Bad extension	127	Interworking, unspecified
480 Temporarily unavailable	18	No user response
481 Call leg does not exist	127	Interworking, unspecified
482 Loop detected
483 Too many hops
484 Address incomplete	28	Address incomplete
485 Address ambiguous	1	Unallocated number
486 Busy here	17	User busy
487 Request cancelled	127	Interworking, unspecified
488 Not acceptable here	127	Interworking, unspecified
500 Internal server error	41	Temporary failure
501 Not implemented	79	Service or option not implemented
502 Bad gateway	38	Network out of order
503 Service unavailable	63	Service or option unavailable
504 Gateway timeout	102	Recover on Expires timeout
505 Version not implemented	127	Interworking, unspecified
580 Precondition Failed	47	Resource unavailable, unspecified
600 Busy everywhere	17	User busy
603 Decline	21	Call rejected
604 Does not exist anywhere	1	Unallocated number
606 Not acceptable	58	Bearer capability not presently available

Command Modes

SIP user agent configuration

Command History

Release	Modification
12.2(2)XB	This command was introduced.
12.2(2)XB2	This command was implemented on the Cisco AS5850 platform.
12.2(8)T	This command was integrated into Cisco IOS Release 12.2(8)T. The Cisco AS5300, Cisco AS5350, Cisco AS5850, and Cisco AS5400 platforms were not supported in this release.
12.2(11)T	This command was integrated into Cisco IOS Release 12.2(11)T and support was added for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 platforms.

Usage Guidelines

A SIP status code can be mapped to many PSTN cause codes. For example, 503 can be mapped to 34, 38, and 58.

Examples

The following example shows how to map a PSTN cause code to correspond with a SIP status code:

Router(config)# sip-ua

Router(config-sip-ua)# set sip-status 400 pstn-cause 16

Related Commands

Command	Description
set pstn-cause	Sets an incoming PSTN cause code to a SIP error status code.

show sip-ua map

To display the mapping table showing PSTN cause codes and their corresponding SIP error status codes or the mapping table showing SIP-to-PSTN codes, use the show sip-ua map command in privileged EXEC mode.

show sip-ua map {pstn-sip | sip-pstn}

Syntax Description

pstn-sip	Displays PSTN cause code to SIP status code mapping table.
sip-pstn	Displays SIP status code to PSTN cause code mapping table.

Defaults

No default behavior or values.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(2)XB	This command was introduced.
12.2(2)XB2	This command was implemented on the Cisco AS5850 platform.
12.2(8)T	This command was integrated into Cisco IOS Release 12.2(8)T. The Cisco AS5300, Cisco AS5350, Cisco AS5850, and Cisco AS5400 platforms were not supported in this release.
12.2(11)T	This command was integrated into Cisco IOS Release 12.2(11)T and support was added for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 platforms.

Examples

The following is a sample output from the show sip-ua map command:

Router# show sip-ua map pstn-sip

PSTN-Cause   Configured        Default

             SIP-Status       SIP-Status

1               404             404

2               404             404

3               404             404

4               500             500

5               500             500

6               500             500

7               500             500

8               500             500

9               500             500

15              500             500

16              500             500

17              486             486

18              480             480

19              480             480

20              480             480

21              403             403

22              410             410

26              404             404

27              404             404

28              484             484

29              501             501

30              500             500

31              404             404

34              503             503

35              500             500

36              500             500

37              500             500

38              503             503

39              500             500

40              500             500

41              503             503

42              503             503

43              500             500

44              500             500

45              500             500

46              500             500

47              503             503

49              500             500

50              500             500

53              500             500

55              403             403

57              403             403

58              501             501

62              500             500

63              500             500

65              501             501

66              500             500

69              500             500

70              500             500

79              501             501

81              500             500

82              500             500

83              500             500

84              500             500

85              500             500

86              500             500

87              503             503

88              400             400

90              500             500

91              500             500

93              500             500

95              400             400

96              500             500

97              500             500

98              500             500

99              500             500

100             500             500

101             500             500

102             408             408

103             500             500

110             500             500

111             400             400

126             500             500

127             500             500

Table 6 show sip-ua map pstn-sip output 

Field	Description
PSTN Cause	Indicates the reasons for PSTN call failure or completion. The PSTN cause code range is from 1-127.
Configured SIP Status	Indicates the configured SIP status code or event. The SIP Status code range is from 400-699.
Default SIP Status	Indicates the default mapping between and PSTN and SIP network.

The following example shows the mapped sip-pstn settings:

Router# show sip-ua map sip-pstn

SIP-Status   Configured        Default

             PSTN-Cause      PSTN-Cause

400             127             127

401             57              57

402             21              21

403             57              57

404             1               1

405             127             127

406             127             127

407             21              21

408             102             102

409             41              41

410             1               1

411             127             127

413             127             127

414             127             127

415             79              79

420             127             127

480