Client not receiving incoming calls

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Steps to troubleshoot:

1. Check if the device is registered to the system, fix if no

2. Open Call Info for the problematic call

  • Please check the hangup cause. If it has code 20, which means that the device is unavailable (not registered). Asterisk log usually shows: WARNING Unable to create channel of type 'SIP' (cause 20 - Subscriber absent)

3. Retrieve PCAP

  • Check if INVITE was sent to the correct IP:PORT

4. Check Asterisk CLI for errors:

__sip_xmit returned -2: No such file or directory

If the device is TCP - make registration every 60s, could be problem with port expiring

Make sure nat=yes, is not used, change to nat=force_rport,comedia




See also