asterisk users - Oct 2020 - linphone calls not missed due to cause not 487

Hello.

Calls cancelled by caller during the dialing phase, are shown in 
Linphone as simply past calls, not missed ones.

I thought this is an Linphone issue, but Sylvain says it's on my PBX side:

https://github.com/BelledonneCommunications/linphone-android/issues/832#issuecomment-557474864

 > The CANCEL message has a Reason header with Q.850 protocol and cause 
0, which doesn't mean call has been missed (should be 487).


Is this my dialplan / setup or an Asterisk issue? How can I get Asterisk 
to send cause=487?

-- 
sergio.

Sometimes, linphone shows missed calls as missed. Look like asterisk 
replies with cause=487 that time, but I can't understand why.

Grandstream always shows calls as missed ones.

How should I investigate this?


-- 
sergio.

Hi Sergio



On 16.10.20 at 07:54 sergio wrote:
> Sometimes, linphone shows missed calls as missed. Look like asterisk
> replies with cause=487 that time, but I can't understand why.
>
> Grandstream always shows calls as missed ones.
>
> How should I investigate this?
You could try to reproduce it while activating pcap traces and analyze
it afterwards - or you could enable pcap traces on asterisk[1] itself
and just wait for the different issues and compare them.





Regards

Michael



[1] activating pcap traces on asterisk / pjsip

pjsip set logger on

pjsip set logger verbose off

pjsip set logger pcap trace.pcap

You can find the trace.pcap in /var/lib/asterisk/trace.pcap (maybe it's
elsewhere on your installation)