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  1. 3CX - 100rel/PRACK Support

    Hi, Calls are being terminated before answering, basically the end destination is sending a 183 back, which GAMMA SIP accepts because they support in on their network but because the 3CX does not the call is terminated. Thanks Dave

  2. 3CX - 100rel/PRACK Support

    Hi, Can anyone tell me if there is any intention in a future release for 3CX to support 100rel/PRACK? With Gamma infrastructure change they will be sending 100rel in their support headers going forward and with no support on 3CX we are seeing issues with 183 responses from destinations. Any...
    • DB2888
    • Thread
    • Replies: 3
    • Forum: UK
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