Description
With TLS protocol, Yeastar P-Series IPPBX will send sips header in some packet, it's possible not to be accepted by particular sip operator and cause failing sip registration or call drop problem, this article guides on how to remove 'sips' header and make pbx send only 'sip' even with TLS protocol.
Applicable Devices
Model: Yeastar P-Series IPPBX
Firmware: X.7.0.51 or later
Steps
1 Access ssh and create custom file pjsip_outreg_custom.conf under /ysdisk/support/customcfg with vi command.
support@IPPBX:~$ vi /ysdisk/support/customcfg/pjsip_outreg_custom.conf
2 Write down below content to the file pjsip_outreg_custom.conf.
[registration-basic](!)
unset_sips = yes
3. Create an extension and delete it again in web interface, click on 'Apply' button.
4. Test call.
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