interworking unspecified

  1. mastermindjf

    Unsupported 3CX IS DROPPING CALL FROM VIVO CARRIER BUT ISNT DROPPED IN A SIP ORDINARY CLIENT (MICROSIP)

    Why the call is completed if i use an SIP client (MICROSIP) connected to the trunk? In 3CX i receive a BYE from carrier. This happens to some calls intra-carrier only. BYE sip:[email protected]:5060 SIP/2.0 Via: SIP/2.0/UDP xxxxxxx:5060;branch=z9hG4bKr8kacp20509st590mf00cd0000010.1...
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