Aastra Telecom 57I CT, 55I, 53I manual Update Caller ID During a Call, Sip update callerid

IP Phone Administrator Guide Advanced Operational Features

Advanced Operational Features

Update Caller ID During a Call

It is possible for a proxy or call server to update the Caller ID information that displays on the phone during a call, by modifying the SIP Contact header in the 200 OK message and/or in a re-INVITE message. The phone displays the updated name and number information contained within the Contact header.

The following parameter allows the system administrator to enable or disable this feature:

sip update callerid:

This parameter is configurable via the configuration files only.

Configuring Update Caller ID During a Call

Configuration Files

For the specific parameter you can set in the configuration files for enabling/disabling the update of caller ID during a call, see Appendix A, the section, “Update Caller ID Setting.” on page A-173.

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