jlumby Posted January 3, 2011 Report Share Posted January 3, 2011 I know that mid way into the 4.2 releases a 410 error was added as a feature to deal with out of sequence CSeq numbers as a result of a PBX restart. The problem was it did not fix things for Aastra, and it created problems for others like Grandstream, and Yealink. I am wondering if there are any plans to remove it from future versions since it seems to be doing more harm than good. Quote Link to comment Share on other sites More sharing options...
Vodia PBX Posted January 4, 2011 Report Share Posted January 4, 2011 The problem was that if the PBX accepts the subscription, the subscription dialog would be fine; however the sequence number of the notifications would randomly start with a lower number and the phone would reject it. Additionally, the notification XML bodies also contain sequence numbers which create additional problems. That is why the PBX tries to force the user agent to come up with a new subscription with reset sequence numbers. IMHO it is clearly a bug of the endpoints that they dont retry after some time with a new subscription. That would solve the problem 100 %. Quote Link to comment Share on other sites More sharing options...
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