Using static routes for SIP trunk providers on different Internet Connections

Discussion in '3CX Phone System - General' started by jon.sellors@jscs.gi, May 30, 2017.

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  1. jon.sellors@jscs.gi

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    Hi,

    Currently I have the following setup:

    3CX Server v15 running on Windows 7 Pro with a private IP of 10.0.0.1
    I use Voipbuster as my SIP call termination provider and I have the following route:

    Static route to 77.72.169.129 via router 10.0.0.251
    The router has the appropriate NAT and firewall rules set for SIP and RTP to flow without the need for STUN. The router also has a public IP that is static.

    For fault tolerance i wish to employ a 2nd SIP provider but on a secondary Internet connection that's on a 2nd router within the same private subnet. For example if I use Sipgate as the provider I would do the following:

    Static route to 217.10.79.23 (sipgate.co.uk) and 217.10.68.149 (proxy.live.sipgate.co.uk) via router 10.0.0.252

    Will this work or will 3CX somehow try to announce the wrong public IP under certain conditions and break the communication?

    Many thanks,

    Jon
     
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