Isdn-To-Sip Release Cause Mapping; Configuring Isdn-To-Sip Release Cause Mapping - AudioCodes Mediant 1000B User Manual

Media gateway & enterprise session border controller (e-sbc)

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* Messages and responses were created because the 'ISUP to SIP Mapping' draft does

not specify their cause code mapping.

23.8.2 ISDN-to-SIP Release Cause Mapping

The Release Cause Mapping from ISDN to SIP table lets you configure up to 12 ISDN ITU-

T Q.850 release cause code (call failure) to SIP response code mapping rules. The table

lets you override the default ISDN-to-SIP release cause mappings, listed in 'Fixed Mapping

of ISDN Release Reason to SIP Response' on page 477. When the device receives an

ISDN cause code from the PSTN side, it searches the table for a matching ISDN cause

code. If found, the device sends the corresponding SIP response to the IP. If the ISDN

cause code is not configured in the table, the default, fixed ISDN-to-SIP release reason

mapping is used.

You can change the originally received ISDN cause code to any other ISDN

cause code, using the Release Cause ISDN to ISDN table (see 'Configuring ISDN-to-

ISDN Release Cause Mapping' on page 479). If the originally received ISDN cause

code appears in both the Release Cause ISDN to ISDN table and the Release Cause

Mapping ISDN to SIP table, the mapping rule in the Release Cause Mapping ISDN to

SIP table is ignored. The device only uses a mapping rule that matches the new

ISDN cause code.

The following procedure describes how to configure ISDN-to-SIP release cause mapping

through the Web interface. You can also configure it through ini file (CauseMapISDN2SIP)

or CLI (configure voip > gw manipulations cause-map-isdn2sip).

To configure a ISDN-to-SIP release cause mapping rule:

Open the Release Cause Mapping from ISDN to SIP table (Configuration tab > VoIP

menu > Gateway > Manipulations > Release Cause ISDN > SIP).

User's Manual

Mediant 1000B Gateway and E- SBC

ISDN Release

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Document #: LTRT-27044