at&t ipflex

  1. Incoming 800 number calls from AT&T

    Hello, I am trying to configure my on-premise 3CX system to accept 800 number calls from our sip provider AT&T. Their system send 5 zeros plus the 800 to the system. (Example 00000800123456789@IP Address). I had the DID configure with *800 but give a fast busy. Wireshark shows the call rejected...

  2. IVR inputs work intermittently

    We have AT&T IPFLEX running on 3CX V14 Service Pack 3. Since last week incoming calls are answered by IVR but intermittently the IVR inputs/options are not recognized. Any idea what is going on?
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