Difference between revisions of "Call hangs after 15 minutes"

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* Do pcap capture and analyze the logs.
* Do pcap capture and analyze the logs.
** check the domain in the request URI
** check the domain in the request URI
** check if Pulic IP addresses are placed in SIP headers
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=== Increase session timers ===
=== Increase session timers ===



Revision as of 11:29, 25 October 2016

Switch may not be responding to the SIP re-INVITE.

Some providers perform a SIP re-INVITE every 15 minutes for any active calls. It's a way of checking if the call is indeed still active. If an appropriate 200 OK is not received back, they disconnect the call.



POSSIBLE SOLUTIONS


Change Provider

Change Provider and check if issue is gone to confirm the origin of the problem.


Canreinvite setting

Set canreinvite to yes in the Device's Edit window.


Solve NAT issues

  • Make sure network is configured properly and all packets reach the Softswitch.
  • Do pcap capture and analyze the logs.
    • check the domain in the request URI
    • check if Pulic IP addresses are placed in SIP headers


Increase session timers

Add in /etc/asterisk/sip.conf [general] section:

session-timers=originate session-expires=10800 session-minse=300 session-refresher=uas

And restart Asterisk.

It can be done per Device in Device Settings page.


Disable session timers (not recommended)

In the general section in /etc/asterisk/sip.conf: session-timers=refuse

It can be done per Device in Device Settings page.

IMPORTANT: Drawback is that a call can show as going on forever if the BYE message is lost due to network problems.



See also