Difference between revisions of "Call hangs after 15 minutes"

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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.
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.


SOLUTION:
'''SOLUTION:'''


* Could be NAT issues.  
* Could be NAT issues.  
* Make sure network is configured properly and all packets reach the Softswitch.  
* Make sure network is configured properly and all packets reach the Softswitch.  
* Do pcap capture and analyze the logs.
* Do pcap capture and analyze the logs.

Revision as of 16:10, 22 February 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.

SOLUTION:

  • Could be NAT issues.
  • Make sure network is configured properly and all packets reach the Softswitch.
  • Do pcap capture and analyze the logs.