Hi All,

My Scenario is as mentioned below

UAS Scirpt  

<--------- INVITE
--------> 183
<--------- PRACK   
---------> 200 OK (PRACK)
---------> 180 Ringing 


PRACK sip:ims-s...@x.x.x.x:6090;transport=UDP SIP/2.0
Via: SIP/2.0/UDP x.x.x.x:65210;branch=z9hG4bK0cB0004b17c7a2717dd
From: <sip:9840...@x.x.x.x>;tag=gK0c000711
To: <sip:ims-s...@x.x.x.x>;tag=1
Call-ID: 12582912_129878060
CSeq: 1651107105 PRACK
Max-Forwards: 70
RAck: 1 1651107104 INVITE
Content-Length: 0

Need to extract the RSeq from RAck Header.......

what regular expression i need to use to extract the Rseq Field from RAck 
Header 
?

how to i increment the value of  RSeq  by one which  i have extracted ?

Any help will be most appreciated.

Thanks
Prakash



      
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