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Grandstream GXW interfacing with existing PBX

Discussion in '3CX Phone System - General' started by markp, May 19, 2008.

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  1. markp

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    Nov 4, 2007
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    Hi,

    I have a Grandstream GXW-4108 - latest firmware etc , linked into analogue ports on a samsung DCS unit. I am using 3cx to provide extensions to a remote factory.
    I am having problems with caller ID internally but my big problem is when users dial out, the grandstream allocates the first line available to it , and this then give the recipients on the existing samsung system the 'wrong' caller on their screen.
    Is there anyway I can force the line used according to the ID of the VOIP handset that is calling ?

    Mark
     
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