Dear All,

Could anyone please help me out on this.

Thanks,
Nitin

On Mon, Mar 21, 2011 at 5:53 PM, Nitin Kapoor <[email protected]>wrote:

> Dear All,
>
> i am facing the problem with one of my customer where i noticed that
> Record-Route header containing the "ftag" parameter.
>
> INVITE sip:[email protected] SIP/2.0
> Record-Route:
> <sip:79.99.193.141;lr;ftag=4F6C3030343338350007D3E5;vsf=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA--;vst=AAAAAHQEBAMFAAUABwZzAg0deQ4XHwAKAAAKCy4xNDE-;did=9b.dcc08423>
> Content-Type:application/sdp
> To:sip:[email protected]
> From:sip:[email protected]
> ;cpc=ordinary;tag=4F6C3030343338350007D3E5
> Privacy:none
> P-Asserted-Identity:sip:[email protected];cpc=ordinary
> Supported:100rel,timer
> Expires:120
> Date:Thu, 10 Mar 2011 20:02:01 GMT
> Session-Expires:3600
> Min-SE:90
> Call-ID:01FF945D4C81400000054AC4@TB004385_VOIP0
> CSeq:1 INVITE
> Route:<sip:79.99.193.141:5060;lr;transport=udp>
> Max-Forwards:69
> Timestamp:512997
> User-Agent:TB004385
> Contact:sip:[email protected]:5061
> Via: SIP/2.0/UDP 79.99.193.141;branch=z9hG4bK1f07.16311b13.0
> Via:SIP/2.0/UDP 79.99.193.138:5060
> ;received=79.99.193.138;branch=z9hG4bKDD5A2E7439308FCEA1D45366471A437C;rport=5060
> Content-Length:344
>
> Now above is my INVITE which is coming from UAC to SBC and my SBC is
> sending 400 Bad Request to UAC. My doubt is that FTAG is containing the
> invalid correct hence SBC is unable to understand the nature of this invite
> hence sending the 400.
>
> Could anyone please help me out to understand this? also is there any limit
> for the character in FTAG?
>
> Thanks,
> Nitin Kapoor
>
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