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Thread: Problem implemeting Multipart offer/answer in Sofia
Problem implemeting Multipart offer/answer in Sofia
country flaguser name
India		 2008-03-14 05:12:19 

  


  

    

Hi,



I am using multipart body in INVITE
requet sent form client A to client B .

For that I disabled the defualt offer
/answer machinary for SDP ( on both clients)  by NUTAG_MEDIA_ENABLE
(0)

When client B receives the invite it
sends a correct 100 trying back to cleint A .



But when i send a 183 session progress
(with SDP) from client B to A ,Client a responds with an answer to the
SDP in 183 in PRACK  (which shouldnt be th case).



The client B should treat the mulitpart

payload in initial INVITE (sent by client A ) as an offer and should respond
with an answer to it in 183 session progress response .



Once client A recieves 183 it should
ACK with PRACK (without message body).



Note : I have included 100rel in require
header of INVITE request for reliable provisional responses .

           
 I have alo parsed the multipart message at the application level.



Please suggest  the corrective
measure .

Please let me know if i need to implement

multipart support for SOA applicaiton level ,what step need to be executed
.



Ideal Case 







regards,


Nakshatra Gupta




Assistant system engineer


Tata Consultancy Services


Cell:- 9873339863

Mailto: nakshatra.guptatcs.com

Website: http://www.tcs.com

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    Re:  Problem implemeting Multipart
offer/answer in Sofia
  


  

     user name

     2008-03-14 07:32:48
  


  

    

  


  

    2008/3/14, Nakshatra Gupta < nakshatra.guptatcs.com">nakshatra.guptatcs.com&gt;:


But when i send a 183 session progress
(with SDP) from client B to A ,Client a responds with an answer to the
SDP in 183 in PRACK  (which shouldnt be th case).

The various NUTAG_OFFER_* and NUTAG_ANSWER_* tags are incorrect if you use mime/multipart.

So client A spontaniously includes SDP in the response? And you have NUA_MEDIA_ENABLE(0)? 


--Pekka 


-- 
Pekka.Pessi mail at nokia.com


  

  
  
   
     
    






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