SIP and ISDN use different response messages to communicate why a call failed or could not be connected (Q.850 for ISDN and SIP Responses for SIP). By default, the Sonus SBC 1000/2000 system uses RFC 3398 to map these to each other. Override Tables allow one to override one or more of these mappings to a different message, which is useful for interoperating with nonstandard equipment. To use a table created here, select it from the Q850 to SIP Override Tables field in a Managing SIP Signaling Groups entry.
Working with Q850 to SIP Override Tables
- In the WebUI, click the Settings tab.
- In the left navigation pane, go to Telephony Mapping Tables > Q.850 to SIP Override Tables.
To view a table's properties:
To modify a Q.850 to SIP Override Table:
To create a Q.850 to SIP Override Table:
- Click the Create ( ) icon.
- Enter a descriptive name in the Description text field.
- Click OK.