Category: Some Outgoing Calls timeout

• Call issues Call Timeout Known Issues SIP 487 SIP Error 487 Some Outgoing Calls timeout

  Some Outgoing Calls timeout

  I was working on a strange issue at a customer regarding Enterprise Voice from Lync.The issue:Some calls fail before call setup completes…In my case it was mostly landline calls, cell calls worked fine. A wireshark trace showed that Lync was “getting bored” waiting for a response from my SIP gateway.…

  13/06/2012