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  • Etherspeak Ringleader SIP trunking issue with hairpin=1

    Etherspeak has this monstrosity of a SIP setup where the SIP signaling goes over a VPN tunnel and the RTP traffic goes over the public internet.

    When the SIP profile for the SIP trunk group has hairpin=1, certain call scenarios lose audio (like call forward always). I can't for the life of me find these missing RTP streams in packet captures. Has anyone worked with this carrier and successfully gotten it to work with hairpinning allowed??

  • #2
    Never fear ShoreTel Forums, I figured it out... Adding the following to the SIP profile option for the SIP trunk group fixed the issue. The SIP profile in use is the default ITSP with no other custom settings.

    IgnoreEarlyMedia=1
    Last edited by augie; 01-09-2020, 09:31 AM.

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    • #3
      Cool. Thanks for following up.

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