[Serusers] how to let iptel ser forward an invite message with route header?

[Arek Bekiersz]

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. 
(...)"


-- 
Regards,
Arek Bekiersz


Ladislav Andel wrote:
> 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 ,thanks
>>  
>> RGS
>> tian.