[sr-dev] nathelper generates a keepalive request with branch=0

[Klaus Darilion]

Am 29.04.2010 00:06, schrieb Iñaki Baz Castillo:
> Hi, nathelper generates a keepalice request with branch=0:
>
>
> OPTIONS sip:9.9.9.9:12345 SIP/2.0
> Via: SIP/2.0/UDP 1.2.3.4:5060;branch=0
> From: sip:nat_keepalive at mydomain.org;tag=b240e8a7
> To: sip:9.9.9.9:12345
> Call-ID: 786219c2-7c0b783-2d at 1.2.3.4
> CSeq: 1 OPTIONS
> Content-Length: 0
>
>
> Why not to use a SIP/2.0 compliant branch (z9hG4bK...)? any reason?

Maybe this is the method to detect keep-alive replies and absorb them 
before they enter dialplan processing.

regards
klaus