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Raspberry Pi SBC LAN Phone to LAN Phone Traffic NOT Local

Discussion in '3CX Phone System - General' started by uptime1, Aug 29, 2014.

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  1. uptime1

    uptime1 New Member

    Jan 13, 2012
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    One of the touted benefits of using the 3CX RPi SBC is to keep LAN phone extension to LAN phone extension network traffic on the LAN thereby conveniently avoiding routing the heavy and latency sensitive RTP packets to and from the 3CX server which helps avoid chewing up precious Internet bandwidth and provides terrific audio call quality for in-office calls.

    Great concept, but it doesn't seem to work that way.

    I'm seeing half of the traffic pushed to the 3CX Cloud Server v12 (with latest updates. RPi is also running the latest 3CX SBC).

    In the following video, there are four phones on the LAN calling another - x148 -> x145 and x141 -> x119. But, note how every phone has a leg to the RPi. That shouldn't be. The traffic should be directly between the phones without transiting through the RPi, and certainly not going to the 3CX Server only to come right back to the LAN. BTW, the 90K per phone network traffic is not SIP, it's nearly all RTP as displayed in the pie graph in the pop-up windows.


    Anyone else seeing this?
  2. pj3cx

    pj3cx Active Member

    Aug 1, 2013
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    Re: Raspberry Pi SBC LAN Phone to LAN Phone Traffic NOT Loca

    Hi there,
    This issue has been confirmed by our R&D and is currently being investigated.
    Sorry for the inconvenience. We will let you know through your support ticket as soon as a fix is available.
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