Sip Trunking

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  • ddiaz17
    Aspiring Member
    • Oct 2013
    • 1
    #1

    Sip Trunking

    Have a SIP trunk and when generating an inbound call I am seeing duplicates 180/Ringing SIP messages. Carrier is complaining about this. I am using an avaya SES.
    Tags: None
  • rsriramoju
    Member
    .
    • Oct 2012
    • 7
    #2
    Hi I don't think Avaya SES can send duplicate 180 ringing can you please send me the SIP trace which you have . Let me have a look.



    thanks very much

    Comment

    • rogerfawbert
      Aspiring Member
      • Aug 2012
      • 1
      #3
      Possibly a TCP retransmission issue, we have seen the same thing. If packet loss is experienced on a SIP trunk using TCP, the identical packets get re-transmitted in set intervals until a response is received.

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