Can 3 small offices can be connected by VoIP?. How?

Discussion in 'VOIP' started by Santa, Jul 7, 2004.

  1. Santa

    Santa Guest


    We have 3 small office (less than 10 people in each office), we are
    using regular PSTN lines and PBX inside the office to connect
    everybody, we have broadband Internet now, can we use VoIP to connect
    all 3 offices and this way can we disconnect PSTN service?.

    What are the equipment required, who are vendors and how?.

    Thanks in advance
    Santa, Jul 7, 2004
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  2. yes, this can be done. How, and how much it will cost, depends on many
    Are you really using a PBX at each location, or are the actually "key"
    systems, such as the Avaya Partner or Panasonic KX line?
    How tightly do you want the solution to be integrated with your current
    PBX systems?

    The solution can be as simple as dropping an IP phone or two onto the
    LAN at each location. Need to call the remote office? Pick up the IP
    phone and call.

    A slightly more elegant solution would be to integrate the IP gateway
    with your current systems, using spare FXO and FXS ports, assuming such
    exist. That way, users don't have to have two phones on their desk and
    hopefully, you will be able to employ some rudimentary LCR rules to
    ensure that the inter-office traffic goes via the VOIP gateway.

    You will be hard pressed to find a more economical solution than one
    built on the open-source "asterisk" system.
    Hammond of Texas, Jul 7, 2004
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  3. Santa

    Santa Guest

    It is tradinitional PBX, there is a outside telephone to PBX and
    everybody is connected to PBX. One office had Cable modem and other
    two offices had dialup internet connection, but this dialup is always
    connected. Can this VoIP connected in this way?.
    Santa, Jul 8, 2004
  4. AFAIK, a VoIP connection with an adequate audio will require at least a
    2KBps (~16Kbps) in each up/down stream. So long as your dial-up connection
    is dedicated to VoIP, you should not have a problem with the audio from the
    VoIP. The minute you start accessing the Internet, i.e. web browsing, using
    the same dial-up line for the VoIP, your VoIP connection will become choppy
    or even lost.
    root/administrator, Jul 8, 2004
  5. Dial-up is NOT broadband. Unless the two offices on dial-up never use
    that connection for anything else while a VOIP connection is up, and
    you're willing to live with the audio quality that heavy compression
    yields, you should probably avoid VOIP.
    Hammond of Texas, Jul 8, 2004
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