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jdjackson
jdjackson
New Member
November 12, 2021
Question

ERSPAN for RTSP VoIP Call Recording

  • November 12, 2021
  • 1 reply
  • 1850 views

We are in the process of implementing a recording system to record calls on certain Yealink IP phones (this is not a FortiVoice IP phone system). Our network is an HA pair of Fortigates that manage all of the switches via Fortilink. We have 5 phones connected to 3 different switches that we need to record. I have setup the ERSPAN in the switch-controller of the FortiGates and it is forwarding the traffic as needed, but the recording product does not like the additional header information that ERSPAN is placing on each packet. Is there a better way to do this?

    1 reply

    xsilver_FTNT
    Staff
    xsilver_FTNT
    Staff
    September 7, 2022

    Hi jdjackson,

    if that is not an emergency / temporary recording need, then I would vote for more traditional way of doing so.

    Which is on PBX which then enforces RTP passing through itself (PBX) via SDP media headers, and so recording is done on PBX. Or, those SDP media headers simply points out to another multimedia endpoint which will be dedicated recorder device.

     

    It is more of config, and also detectable if anyone has a peak into SIP/SDP headers.

    So not sufficient for sneaky recording, which is prohibited in Europe and might be same in other countries (check your local law).

     

     

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