3CX Using AT&T IPFlex over MPLS for SIP Trunking

Discussion in '3CX Phone System - General' started by cwct23, Feb 13, 2018.

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  1. cwct23

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    I have a scenario, where a customer wants to use AT&T SIP trunks. They already have an MPLS in place, so AT&T is suggesting IPFlex over the MPLS to deliver the SIP trunks.
    They said either an SBC is needed between 3CX and the AT&T router or 3CX must act as an SBC to terminate the connection.
    Has anyone run into this scenario? I am just trying to avoid any issues or caveats. If an SBC is required, I'm thinking an AT&T provided and managed one would be the best option.
     
  2. neville

    neville New Member

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    I do this with a client. AT&T provides the SBC. It works fine after it is setup.

    Chuck
     
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