Subject: RE: [Sip] From Port

From: "Chris Boulton" <[email-masked]>
Date: Mon, 1 Mar 2004 07:06:57 -0000

The From does not have to contain anything useful at all. In general it should have something that is more like the address of record for the user instead of the the IP address and port that can be used to reach the device. The contact is used to reach the device. So mine mike look like 

From: “Cullen Jennings” <sip:[email-masked]>

If the only way to reach the proxy was on port 1234 then I might have to include that in my AOR but I would usually not put the port that the UA was using in the from. 
 
<<CJB>> Lets remember that a port is not allowed to appear on a From header (and To).
 
Chris.

On 2/20/04 1:00 PM, "Anil Bollineni" <[email-masked]> wrote:

		Hi All,
		            For any SIP message, if UA or Proxy sending message than other than from port 5060, then it should be included in SIP from URI. For example, if the Register message comes from 202.10.10.20:2218, the From header should look like From: sip:[email-masked]:2218. Is it MUST if the port is different than port 5060 then it should appear in the From header?
		 
		Thanks in Advance,
		Anil
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