Splitting a Point to Point T1 for Voice/Data

Discussion in 'Cisco' started by Douglas, Oct 25, 2004.

  1. Douglas

    Douglas Guest

    We currently have a Point to Point Full T1 with a Cisco 1721 on each
    end. Each router has as T1 CSU/DSU Wic Card installed. We are
    interested in getting the remote office connected using a point-point
    so we can have four digit conferencing between offices. Our phone
    company said they can do that with a point-point T1 circuit, but they
    only need two channels.

    Is there a way I can split off 2 of the channels from the data T1 and
    somehow configure it to be used for Voice? I realize I would have to
    buy something because I only have one Wic card installed and that
    plugs into our network.

    Thank you,
    Douglas McIver
    Douglas, Oct 25, 2004
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  2. Douglas

    Scooby Guest

    Doug, yes, you can do this with the appropriate CSU/DSU. I'm not sure if
    there are internal ones for the Cisco routers available. I've used the
    Adtran TSU120e, which does what you are looking for, but would require that
    you use a serial wic rather than the internal CSU card. It has a DSX port
    for the voice and then a v.35 to connect to the router. You can specify
    which channels are used for voice and which for data.

    Hope that helps,

    Scooby, Oct 25, 2004
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  3. Great, thank you jim.

    Douglas McIver, Oct 25, 2004
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