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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 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

  1. In the WebUI, click the Settings tab. 
  2. In the left navigation pane, go to Telephony Mapping Tables > Q.850 to SIP Override Tables.

Q.850 to SIP Override Tables

 

To view a table's properties:

  1. Click the pop-up icon () next to the entry you want to view.
  2. When you are finished, close the window.

To modify a Q.850 to SIP Override Table:

  1. Click the expand () Icon next to the entry you wish to modify.
  2. Modify the table's Description as desired
  3. Click OK.

To create a Q.850 to SIP Override Table:

  1. Click the Create ( ) icon.
  2. Enter a descriptive name in the Description text field.

  3. Click OK.

    Create Q.850 to SIP Override Table

     

     

     

To delete an entry, select the checkbox next to the entry and then click the Delete () icon.

 

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