[SR-Users] reply when drop() in branch route

[Iñaki Baz Castillo]

2010/4/14 Juha Heinanen <jh at tutpro.com>:
> i call drop() in branch route and it is the only branch left.  the
> branch gets correctly dropped, i.e., the request is not send out, but
> the reply to UAC is strange:
>
> U 2010/04/14 21:03:43.750712 192.98.102.10:5060 -> 192.98.103.2:5074
> SIP/2.0 477 Unfortunately error on sending to next hop occurred (477/TM).
> Via: SIP/2.0/UDP 192.98.103.2:5074;rport=5074;branch=z9hG4bKaoxzewgj.
> To: <sip:0407058055 at 192.98.102.10>;tag=c02670ad1171fe45d9ff9a27d6c2cb82-e03b.
> From: <sip:+35816234567 at foo.bar>;tag=bclsw.
> Call-ID: doibilvynrtqxpk at localhost.
> CSeq: 134 INVITE.
> Server: SIP Proxy  (3.0.99-dev1 (i386/linux)).
> Content-Length: 0.
>
> why this kind of reply, because the proxy didn't even try to send the
> request to next ho?
>
> is it possible to somehow choose in the script, which reply to send?  in
> this example, i'm using lcr to choose gws and none of them was suitable,
> so something like '503 service not available' would be more appropriate.

What about checking in failure_route if the final response is locally
generated (and also the winning status so you get the 477 and can act
according)?

-- 
Iñaki Baz Castillo
<ibc at aliax.net>