[SIPForum-discussion] How SIP call can be diffrentiated basedon Class4 and Class5 switch calls

[Garrity, John N. (Infrastructure Solutions Dept.)]

If you are willing to take the time you can establish a local dialing
area list and compare the caller ID to the list to establish local Class
5 or Long Distance Class 4. 

________________________________

From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of Eric Burger
Sent: Wednesday, December 02, 2009 6:58 AM
To: kshitij.bhushan at gmail.com
Cc: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] How SIP call can be diffrentiated
basedon Class4 and Class5 switch calls


In SIP there is no distinction -- Class n was about the PSTN routing
hierarchy. SIP uses an entirely different (flat) routing model. 

On Dec 1, 2009, at 7:00 AM, Kshitij Bhushan wrote:


	Hi All,
	 
	One basic question?
	 
	How we are distinguishing the class4 and class5 switch call in
SIP?Is through NOA or some access layer or something else.
	 
	Pls reply!!!!
	 
	Thanks in advance.
	Kshitij.
	 
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