Configuring an Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure

Last Updated: December 20, 2011

Cisco Unified Border Element (Cisco UBE) provides an option to configure the error response code when a dial peer is busied out because of an Out-of-Dialog OPTIONS ping failure.

The OPTIONS ping mechanism monitors the status of a remote Session Initiation Protocol (SIP) server, proxy or endpoints. Cisco UBE monitors these endpoints periodically. When there is no response from these monitored endpoints, the configured dial peer is busied out. If the dial-peer endpoint is busied out due to an OPTIONS ping failure, the call is passed on to the next dial-peer endpoint if an alternate dial peer is configured for the same destination. Otherwise the error response 404 is sent. This feature provides the option of configuring the error response code to reroute the call. Therefore when a dial peer is busied out due to the OPTIONS ping failure, the SIP error code configured in the inbound dial-peer is sent as a response.

To configure the SIP error code response, perform the following tasks:

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.

Prerequisites for Configuring an Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure

  • The Cisco UBE Out-of-Dialog (OOD) OPTIONS Ping for Specified SIP Servers or Endpoints feature should be configured before configuring this error response code for a ping OPTIONS failure.

Cisco Unified Border Element

  • Cisco IOS Release 15.1(1)T or a later release must be installed and running on your Cisco Unified Border Element.

Cisco Unified Border Element (Enterprise)

  • Cisco IOS XE Release 3.1S or a later release must be installed and running on your Cisco ASR 1000 Series Router.

Restrictions for Configuring an Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure

The error code configuration will not have any effect if it is configured on the outbound dial peer.

Configuring an Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure at the Global Level

The table below describes the SIP error codes.

Table 1 SIP Error Codes

Error Code Number

Description

400

Bad Request

401

Unauthorized

402

Payment Required

403

Forbidden

404

Not Found

408

Request Timed Out

416

Unsupported URI

480

Temporarily Unavailable

482

Loop Detected

484

Address Incomplete

486

Busy Here

487

Request Terminated

488

Not Acceptable Here

500-599

SIP 5xx--Server/Service Failure

500

Internal Server Error

502

Bad Gateway

503

Service Unavailable

600-699

SIP 6xx--Global Failure

To configure the error response code for the OPTIONS ping failure to support the Cisco Unified Border Element at the global level, perform the steps in this section.

SUMMARY STEPS

1.    enable

2.    configure terminal

3.    voice service voip

4.    sip

5.    error-code-override options-keepalive failure sip-status-code-number

6.    end


DETAILED STEPS
  Command or Action Purpose
Step 1
enable


Example:

Router> enable

 

Enables privileged EXEC mode.

  • Enter your password if prompted.
 
Step 2
configure terminal


Example:

Router# configure terminal

 

Enters global configuration mode.

 
Step 3
voice service voip


Example:

Router(config)# voice service voip

 

Enters voice service configuration mode.

 
Step 4
sip


Example:

Router(conf-voi-serv)# sip

 

Enters voice service SIP configuration mode.

 
Step 5
error-code-override options-keepalive failure sip-status-code-number


Example:

Router(conf-serv-sip)# error-code-override options-keepalive failure 402

 

Configures the specified SIP error code number.

  • sip-status-code-number --SIP status code to be sent for an options keepalive failure. Range: 400 to 699. Default: 503.
  • The table above provides more details about these error codes.
 
Step 6
end


Example:

Router(conf-serv-sip)# end

 

Exits voice service SIP configuration mode and returns to privileged EXEC mode.

 

Configuring an Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure at the Dial Peer Level

To configure the error response code for the OPTIONS ping failure to support the Cisco Unified Border Element at the dial-peer level, perform the steps in this section.

SUMMARY STEPS

1.    enable

2.    configure terminal

3.    dial-peer voice voice-dial-peer-tag voip

4.    voice-class sip error-code-error-override options-keepalive failure {sip-status-code-number | system}

5.    end


DETAILED STEPS
  Command or Action Purpose
Step 1
enable


Example:

Router> enable

 

Enables privileged EXEC mode.

  • Enter your password if prompted.
 
Step 2
configure terminal


Example:

Router# configure terminal

 

Enters global configuration mode.

 
Step 3
dial-peer voice voice-dial-peer-tag voip


Example:

Router(config)# dial-peer voice 234 voip

 

Enters dial peer voice configuration mode.

 
Step 4
voice-class sip error-code-error-override options-keepalive failure {sip-status-code-number | system}


Example:

Router(config-dial-peer)# voice-class sip error-code-override options-keepalive failure 500

 

Configures the specified SIP error code number.

Note    If the system keyword is configured, the global level configuration will override the dial-peer configuration.
 
Step 5
end


Example:

Router(config-dial-peer)# end

 

Exits dial peer voice configuration mode and returns to privileged EXEC mode.

 

Troubleshooting Tips

The following debug commands display any error that occurs with the error code response:

  • debug ccsip messages-- shows SIP messages.
Router# debug ccsip messages
SIP Call messages tracing is enabled
  • debug ccsip all --shows all SIP-related debugging.
Router# debug ccsip all
This may severely impact system performance. Continue? [confirm]
All SIP Call tracing is enabled

Feature Information for Configuring an Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure

The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.

Feature History Table entry for the Cisco Unified Border Element.

Table 2 Feature Information for Configuring an Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure

Feature Name

Releases

Feature Information

Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure

15.1(1)T

This feature provides option to configure the error response code when a dial peer is busied out because of an Out-of-Dialog OPTIONS ping failure.

The following commands were introduced or modified in this release: error-code-override options-keepalive failure, voice-class sip error-code-override options-keepalive failure.

Feature History Table entry for the Cisco Unified Border Element (Enterprise)

Table 3 Feature Information for Configuring an Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure

Feature Name

Releases

Feature Information

Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure

Cisco IOS XE Release 3.1S

This feature provides option to configure the error response code when a dial peer is busied out because of an Out-of-Dialog OPTIONS ping failure.

The following commands were introduced or modified in this release: error-code-override options-keepalive failure, voice-class sip error-code-override options-keepalive failure.

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