border elements

  1. Trouble conecting to AT&T with Border Elements

    We are trying to connect our 3CX Server v16.0.1581 to our AT&T Cisco router via SIP. Our AT&T implementation uses the Public Media Address ( port 2 on the Cisco router ) and the Public Signaling Address ( network card on the 3CX server ) along with 2 Border Elements that AT&T has provided. We...
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