12 Jul
2011
12 Jul
'11
9:37 a.m.
Hi, I've a stupid SIP PBX (Alcatel) which after registering sends a
periodic OPTIONS with no RURI username and with "Accept:
application/sdp". My proxy replies 200 in this case, but without SDP
body (how could I know which codecs to show???) and unfortunately the
Alcatel does not like it and send retransmissions of the requests (sad
but true). After a while Alcatel determines that the proxy is down
(pathetic but true).
So I must do a hack and reply 200 with SDP from Kamailio when the
request is an OPTIONS and contains "Accept: application/sdp". I don't
want to forward the OPTIONS to PSTN gateways behind Kamailio for
different reasons.
Which would be the best way to do it? is it possible to add a spoofed
body to a response replied stateless from Kamailio?
Note: options_reply() in siputils module is not valid as AFAIK it does
not show a SDP.
Thanks a lot.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
12 Jul
12 Jul
9:40 a.m.
2011/7/12 Iñaki Baz Castillo <ibc(a)aliax.net>et>:
So I must do a hack and reply 200 with SDP from
Kamailio when the
request is an OPTIONS and contains "Accept: application/sdp". I don't
want to forward the OPTIONS to PSTN gateways behind Kamailio for
different reasons.
Which would be the best way to do it? is it possible to add a spoofed
body to a response replied stateless from Kamailio?
Note: options_reply() in siputils module is not valid as AFAIK it does
not show a SDP.
I missed set_body(txt,content_type) from textops module :)
But, is it possible to add such body to a response sent stateless? I
expect that it would add the body to the processed request.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
9:41 a.m.
2011/7/12 Iñaki Baz Castillo <ibc(a)aliax.net>et>:
I missed set_body(txt,content_type) from textops
module :)
But, is it possible to add such body to a response sent stateless? I
expect that it would add the body to the processed request.
Oh, please, forget me forever. Just a few lines below "set_body()" there is:
set_reply_body(txt,content_type)
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
24 Jul
24 Jul
3:56 a.m.
Hi Iñaki,
which kind of Alcatel PBX it is? I use OPTIONS with and without SDP in
200 without
problems since several years with Alcatel OmniPCX Enterprise systems.
regards,
Andreas
Am 12.07.2011 15:37, schrieb Iñaki Baz Castillo:
Hi, I've a stupid SIP PBX (Alcatel) which after
registering sends a
periodic OPTIONS with no RURI username and with "Accept:
application/sdp". My proxy replies 200 in this case, but without SDP
body (how could I know which codecs to show???) and unfortunately the
Alcatel does not like it and send retransmissions of the requests (sad
but true). After a while Alcatel determines that the proxy is down
(pathetic but true).
So I must do a hack and reply 200 with SDP from Kamailio when the
request is an OPTIONS and contains "Accept: application/sdp". I don't
want to forward the OPTIONS to PSTN gateways behind Kamailio for
different reasons.
Which would be the best way to do it? is it possible to add a spoofed
body to a response replied stateless from Kamailio?
Note: options_reply() in siputils module is not valid as AFAIK it does
not show a SDP.
Thanks a lot.
3:27 p.m.
2011/7/24 Andreas Heise <aheise(a)gmx.de>de>:
which kind of Alcatel PBX it is? I use OPTIONS with
and without SDP in 200
without
problems since several years with Alcatel OmniPCX Enterprise systems.
It's strange as we also work with other Alcatel OXE and OXO with no
problems. In this exact case, the PBX performs SIP registration and
later sends periodic OPTIONS with "Accept: application/sdp". Since the
200 is replied by my proxy Kamailio, it has no SDP (of course) and the
Alcatel PBX ignores the reply and sends retransmissionts until it
decides that "the proxy is down".
If you need I could try to get the exact PBX model (and firmware).
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
5:02 p.m.
this is not a problem of missing SDP in your replies, there was a bug in
OXE sipmotor when registration
and options supervision are managed for the same gateway.
If needed I could provide more details by pm as it's OT for the Kamailio
community.
regards,
Andreas
Am 24.07.2011 21:27, schrieb Iñaki Baz Castillo:
2011/7/24 Andreas Heise<aheise(a)gmx.de>de>:
which kind of Alcatel PBX it is? I use OPTIONS
with and without SDP in 200
without
problems since several years with Alcatel OmniPCX Enterprise systems.
It's
strange as we also work with other Alcatel OXE and OXO with no
problems. In this exact case, the PBX performs SIP registration and
later sends periodic OPTIONS with "Accept: application/sdp". Since the
200 is replied by my proxy Kamailio, it has no SDP (of course) and the
Alcatel PBX ignores the reply and sends retransmissionts until it
decides that "the proxy is down".
If you need I could try to get the exact PBX model (and firmware).
6:52 p.m.
2011/7/24 Andreas Heise <aheise(a)gmx.de>de>:
this is not a problem of missing SDP in your replies,
there was a bug in OXE
sipmotor when registration
and options supervision are managed for the same gateway.
Great to know. It was really strange the "need" of receiving a 200 OK
with SDP for a monitorization OPTIONS.
If needed I could provide more details by pm as
it's OT for the Kamailio
community.
I would really appreciate it. Could you please send me (to my mail)
some info about such bug in the OXE? it's exactly what I need.
Thanks a lot.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
4956
days inactive
4968
days old
6 comments
2 participants
participants (2)
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Andreas Heise -
Iñaki Baz Castillo