Hi , I am a new user of iptel ser,I want to make this configuration
UE1,2,3,4<---------->IPtel ser <---------------------------------->application server ,
the UEs send out invite request to iptel ser first ,I want to make iptel ser forward this request to application server with two route header added: route:application server :5060 route:iptel ser :5060
so the application server can send this request back to iptel ser.
your kindly help is appreciated ,thanks
RGS tian.
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As far as I know you don't need to add any route header in this case. On the top of SIP message is VIA header which says which way your application server should answer back..
Route header is used when you have more proxies in the way where the message you want to route through
from RFC 3261:
The Route header field is used to force routing for a request through the listed set of proxies. Examples of the use of the Route header field are in Section 16.12.1.
Example:
Route: sip:bigbox3.site3.atlanta.com;lr, sip:server10.biloxi.com;lr
Can anybody confirm?
Ladislav
fang tian wrote:
Hi , I am a new user of iptel ser,I want to make this configuration
UE1,2,3,4<---------->IPtel ser<---------------------------------->application server ,
the UEs send out invite request to iptel ser first ,I want to make iptel ser forward this request to application server with two route header added: route:application server :5060 route:iptel ser :5060
so the application server can send this request back to iptel ser.
your kindly help is appreciated ,thanksRGS tian.
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Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
IMHO you just need to add Record-Route header field at proxy to every request. I think the applicable section of RFC3261 would be page 17:
" (...) In some cases, it may be useful for proxies in the SIP signaling path to see all the messaging between the endpoints for the duration of the session. For example, if the biloxi.com proxy server wished to remain in the SIP messaging path beyond the initial INVITE, it would add to the INVITE a required routing header field known as Record- Route that contained a URI resolving to the hostname or IP address of the proxy. This information would be received by both Bob's SIP phone and (due to the Record-Route header field being passed back in the 200 (OK)) Alice's softphone and stored for the duration of the dialog. The biloxi.com proxy server would then receive and proxy the ACK, BYE, and 200 (OK) to the BYE. Each proxy can independently decide to receive subsequent messages, and those messages will pass through all proxies that elect to receive it. This capability is frequently used for proxies that are providing mid-call features. (...)"
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Arek Bekiersz -
fang tian -
Ladislav Andel