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What is DID

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kurmann

Programmer
Sep 12, 2003
74
US
What exactly is DID?

and how would it differ from just assinging a line to a certain extension?

Is a T1 module really neccessary if a customer says they need DID or can I just get by with a normal ACS system and dedicate lines to extensions through programming?
 
with DID you can have multi numbers assigned to one trunk

the phone system decodes the number and delivers it to the proper extension .

typically each employee has their own number assigned (without having to have a trunk per employee )

so for the sake of discussion a company can have 100 DID numbers and 20 trunks

if you have a customer that just needs a direct lint to a extesnion than you just assign a trunk to that extension exclusivly and your done .

 
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