User's Manual

User Guide for the SIP-T21P IP Phone
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2. Click Reboot to reboot the phone.
Note
How to export PCAP trace?
We may need you to provide a PCAP trace to help analyze your problem.
To export a PCAP trace via web user interface:
1. Click on Settings->Upgrade.
2. Click Start to start recording signal traffic.
3. Recreate the error to be documented in the trace.
4. Click Stop to stop recording.
5. Click Export to open file download window, and then save the file to your local
system.
You can also long press the
X
key to reboot the phone directly.
Any reboot of
the
phone
may take a few minutes.