[SIPForum-discussion] Difference between Path and Service-routeheaderfields

Kaushik V Shah kaushik at ncoretech.com
Thu Feb 1 10:11:54 UTC 2007

Hi Anuj,

Please refer to RFC 3608 for Service-Route
and RFC 3327 for PATH.


anuj wrote:

> Hello!
> There are two optional fields of the SIP header "Path" and 
> "Service-route".
> From their usage i could see that both are used for populating the 
> route header fields and are inserted by the proxys to force
> the routing of future messages during registration through them.
> Only difference i could notice is that the Service-rout is added only 
> in 200 ok response!!!
> I want to know if i am correct or ther are other difference as well?
> Also Whether this forced routing is only for the messages flowing 
> during registration or for all the messages which follow even after 
> registration?
> thanks in advance!
> anuj
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