Wrong SDP informations sent when dialing FS

[Matteo]

Hi,

I've noticed that local SDP (red5 sip client) is built using the server (freeswitch IP) via informations.

When FS is local (127.0.0.1) everything works because red5 sip client IP is == FS sip IP,

but if you use a remote FS you end up in having no audio, because red5 sip client

puts in his own SDP the FS ip address, instead of it's local ip.

Can you confirm this behaviour?

I think I can open an issue in the tracker, or I'm wrong :) ?

regards,

Matteo

[Matteo]

Just for additional informations:

in my setup a FS has been setup on remote machine, with IP 192.168.1.32.

I've changed relevant bbb conf files, and I see that bbb correctly registers 

to my FS and connect to esl.

but when I join a conference, I can see that BBB got the join event

(so esl is working ok), but I cannot hear anything.

Looking to red5 sip.log :

2012-11-05 12:14:43,899 [NioProcessor-4] DEBUG o.b.voiceconf.sip.CallAgent - localSession Descriptor = v=0

o=31-accipicchia 0 0 IN IP4 192.168.1.32

s=Session SIP/SDP

c=IN IP4 192.168.1.32

t=0 0

m=audio 15004 RTP/AVP 100 8 18 0 111

a=rtpmap:100 SPEEX/16000/1

a=rtpmap:8 PCMA/8000/1

a=rtpmap:18 G729/8000/1

a=fmtp:18 annexb=no

a=rtpmap:0 PCMU/8000/1

a=rtpmap:111 ILBC/8000/1

a=fmtp:111 mode=30

a=ptime:20

With this setup FS is trying to send media to itself... so call will fail after some

minutes with a media timeout error.

regards, Matteo

[Richard Alam]

On Mon, Nov 5, 2012 at 10:56 AM, Matteo <mbranc...@gmail.com> wrote:

Hi,

I've noticed that local SDP (red5 sip client) is built using the server (freeswitch IP) via informations.

When FS is local (127.0.0.1) everything works because red5 sip client IP is == FS sip IP,

but if you use a remote FS you end up in having no audio, because red5 sip client

puts in his own SDP the FS ip address, instead of it's local ip.

I have used freeswitch externally by just changing the IP address in bigbluebutton-sip.properties.

I'll see if I can reproduce the problem when I get time.

Richard

 

Can you confirm this behaviour?

I think I can open an issue in the tracker, or I'm wrong :) ?

regards,

Matteo

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[matteo brancaleoni]

Hi,

On Mon, Nov 5, 2012 at 8:32 PM, Richard Alam <ritz...@gmail.com> wrote:

I have used freeswitch externally by just changing the IP address in bigbluebutton-sip.properties.

yes, I've done the same thing, and everything works, except media.

 

I'll see if I can reproduce the problem when I get time.

thanks!

matteo 

[HostBBB.com]

Matteo, What is the IP address of the BBB server, are you on a single
lan with no routing.. want to make sure the RTP ports are open for
media on the 2 boxes and they are on the same segment.

I've ran seperate freeswitch servers with BBB before not had problems,
you have to open the ESL port on new freeswitch and make sure the bbb
servers ip is allowed to connect to it.

The only other thing i have had to do before, when involved with
connection thru routers, it setting up the STUN, and NAT traversal to
be agreement. This was need so any sip client could connect thru
there router.

regards,
Stephen

On Nov 5, 5:35 pm, matteo brancaleoni <mbrancale...@gmail.com> wrote:
> Hi,
>

[matteo brancaleoni]

Hi,

On Tue, Nov 6, 2012 at 12:58 AM, HostBBB.com <207...@gmail.com> wrote:

Matteo, What is the IP address of the BBB server, are you on a single
lan with no routing..

sure they're on same lan.

 

want to make sure the RTP ports are open for
media on the 2 boxes and they are on the same segment.

yes everything open.

But the issue is the wrong sdp description... is pretty clear why

it does not work, the question is why BBB is putting FS IP in it's own SDP.

 

I've ran seperate freeswitch servers with BBB before not had problems,
you have to open the ESL port on new freeswitch and make sure the bbb
servers ip is allowed to connect to it.

esl is ok, I can see BBB connected and on flash gui everything works.

 

The only other thing i have had to do before, when involved with
connection thru routers, it setting up the STUN, and NAT traversal to
be agreement.   This was need so any sip client could connect thru
there router.

yup, I know the matte arond that, but now I'm on same physical lan.

tnanks and regards,

matteo.

[Alex Gotev]

I've opened an issue too and provided detailed information about the problem and its solution here http://code.google.com/p/bigbluebutton/issues/detail?id=1355

[Alex Gotev]

I've forked the bigbluebutton project on github and resolved the issue on the external_freeswitch branch here: https://github.com/alexbbb/bigbluebutton/tree/external_freeswitch