tata communications

  1. 3cx receiving calls but outgoing calls forbidden

    Hello, we are using an unsupported sip trunk from a local provider in india (Tata Communications). They allow communication from only 1 allocated IP provided by them. We have configured that IP in our router. And connected 3cx machine to the router via LAN cable. Also created one-to-one NATting...
    • vichar
    • Thread
    • 3cx outbound parameters sip sip trunk tata communications
    • Replies: 6
    • Forum: Phone System / PBX
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