Hi

i am using sipp for call hold scenerio. here i am using x-lite as uac and sipp 
as uas. 

here i want to implement the logic, when x-lite press hold button, my sipp will 
receive invite and it will parse the msg field (c=0.0.0.0 || a=sendonly || c & 
a field), if it matches with any of the field, then go for sending 200 ok with 
c=0.0.0.0 or a= recvonly, if it did not receive INVITE from x-lite, then close 
the call by sendind BYE.



here i am attaching uas.xml script, here i have doubt how to parse the  and a 
msg field and then how to send response corresponding to that request







  

    

      

      

          

          

      

    

        

        

          

      

    

        

  

   

    

    

      Content-Type: application/sdp

      Content-Length: [len]



      v=0

      o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]

      s=-

      c=IN IP[media_ip_type] 0.0.0.0

      t=0 0

      m=audio [media_port] RTP/AVP 0

      a=rtpmap:0 PCMU/8000



    ]]>

  

    

        

      

    

      Content-Type: application/sdp

      Content-Length: [len]



      v=0

      o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]

      s=-

      c=IN IP[media_ip_type] [media_ip]

      t=0 0

      m=audio [media_port] RTP/AVP 0

      a=recvonly



    ]]>

  

  

        

     

    

      Content-Type: application/sdp

      Content-Length: [len]



      v=0

      o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]

      s=-

      c=IN IP[media_ip_type] 0.0.0.0

      t=0 0

      m=audio [media_port] RTP/AVP 0

      a=recvonly



    ]]>

  

  

  

  

  



  

    

      Content-Length: 0



    ]]>

  



Regards

Manasi
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