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
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uses
RFC 4497 to map these to each other. Override Tables allow you 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 SIP to Q.850 Override Tables field in a
SIP Signaling Groups entry.
Working with SIP to Q.850 Override Tables
- In the WebUI, click the Settings tab.
- In the left navigation pane, go to Telephony Mapping Tables > SIP to Q.850 Override Tables.
SIP to Q.850 Override Tables
To view a table's properties:
- Click the pop-up icon () next to the entry you want to view.
- When you are finished, close the window.
To modify a SIP to Q.850 Override Table:
- Click the expand () Icon next to the entry you wish to modify.
- Modify the table's Description as desired
- Click OK.
To create a SIP to Q.850 Override Table:
- Click the Create ( ) icon.
- Enter a descriptive name in the Description text field.
- Click OK.
Create SIP to Q.850 Override Table
To delete an entry, select the checkbox next to the entry and then click the Delete () icon.