[SIPForum-discussion] CENTREX Solution with SIP

[SAKCA, HALIT (HALIT)]

Hi Kemal,

One of my experience is;
A -> location -1 user
B  -> location-2 user
A calls B. A dials 4 digit.
Call processed by Application Server and digit manipulation done on core level.
Lets say 4 digit becomes as regular B number.

By the way, Does Centrex solution means PBX?
If so then it is different :)

Regards,
Halit

From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Ali Kemal MAYUK
Sent: Monday, November 29, 2010 4:50 PM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] CENTREX Solution with SIP

Hi all;

I am investigating about how Centrex work with SIP. If an enterprise customer has a 2 different locations, how they call each other with short numbers(4 digit) ? Which SIP headers are used for it? Is there a standartization ? Does any one have a solution documentation? How the big companies handle it?

--
Kemal
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