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Advanced Operational Features
6-8 41-001343-02 REV04 – 05.2014
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 re-INVITE message. The phone displays the updated name and number informa-
tion 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
Boot Sequence Recovery Mode
You can force the IP phone into recovery mode by pressing the 1 and # keys during boot up when the logo displays. This
feature is enabled by default on the IP phone.
You can disable this feature using the following parameter in the configuration files:
• force web recovery mode disabled
Valid values for this parameter are 0 (false) and 1 (true). Default is 0 (false).
A boot counter increments after each faulty boot. When the counter reaches a predetermined value, it forces Web recov-
ery mode. The counter is reset to zero upon a successful boot.
The predetermined value is set using the following parameter in the configuration files:
• max boot count
A zero (0) value disables this feature. The default value is 10.
You can configure the boot sequence recovery mode parameters using the configuration files only.
Configuring Boot Sequence Recovery Mode
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 pageA-205.
Note:
After the phone has been successfully recovered through the web recovery mode, the phone will fully download and
upgrade to the firmware defined in the configuration files (upon reboot) or pushed through the Web UI even if the
defined/pushed firmware’s version is identical to the version already loaded on the phone.
Configuration Files
For the specific parameters you can set in the configuration files for boot sequence recovery mode, see Appendix A, the section, “Boot Sequence
Recovery Mode Settings” on pageA-206.