Advanced Operational Features
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41-001160-00, Release 2.1, Rev 04
IP Phone Administrator Guide
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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