Call hangs after 30 seconds

• Check timeout - maybe call can't last more then 30s?
• Write down all IPs of all devices which participate in the session
• Enable sip debug and look for BYE packet, who is sending it.
• If there is no BYE packet - big chance that problem is in the network - e.g. BYE packet does not reach our end or other end has problems with SIP protocol implementation
  • Check IP in SIP debug and compare to real IPs
  • If it is possible - try to capture SIP debug at the other end and compare to SIP debug in MOR