Hi Brian,

it seems that this was not the issue.

Some more details:
We have an opensips server using the load_balancer module to route the calls to the freeswitch box. (https://wiki.freeswitch.org/wiki/Enterprise_deployment_OpenSIPS)
When I route the calls directly to the freeswitch's external IP, the calls connect fine and have audio.
However when I route the calls to the opensips server first, the call will connect but without audio.

The strange thing is Opensips uses Freeswitch's internal address (from the load_balancer table) to forward the INVITE packet, yet when the ACK packet comes in from the provider opensips tries to forward it to the FS external IP address rather than the internal IP.

I understand this is probably more an opensips question, so will understand if I should post this to their mailing list, but any tips would be appreciated.


thanks
Matt

On 19/08/2014 17:25, Matt Broad wrote:

thanks brian, will give it a go and see what happens.

thanks
Matt

On 19/08/2014 17:06, Brian West wrote:

Can you try prefixing the ext-rtp-ip and ext-sip-ip with autonat:0.0.0.0  and make sure local-network-acl is set to rfc1918.auto?

On Tue, Aug 19, 2014 at 9:20 AM, Matt Broad <matt@inveroak.com> wrote:

Hi,

does it make any difference if my internal IP address is being sent in
the SDP connection information?  I have 2 sip providers where 1 I can
bridge calls and receive audio and 1 that I can bridge calls but get no
audio.

Even with the below settings the SDP message body contains c=IN IP4
192.168.1.1.

I have vars set as:
<X-PRE-PROCESS cmd="set" data="external_rtp_ip=my.ip.goes.here"/>
<X-PRE-PROCESS cmd="set" data="external_sip_ip=my.ip.goes.here"/>

I have setup the external profile as follows:
<param name="ext-rtp-ip" value="$${external_rtp_ip}"/>
<param name="ext-sip-ip" value="$${external_sip_ip}"/>

running sofia status profile external gives (replace 0.0.0.0 with the
real external IP declared in vars):
=================================================================================================
Name                    external
Domain Name             N/A
Auto-NAT                false
DBName                  sofia_reg_external
Pres Hosts
Dialplan                XML
Context                 public
Challenge Realm         auto_to
RTP-IP                  192.168.1.1
Ext-RTP-IP              0.0.0.0
SIP-IP                  192.168.1.1
Ext-SIP-IP              0.0.0.0
URL                     sip:mod_sofia@0.0.0.0:5080
BIND-URL sip:mod_sofia@0.0.0.0:5080;maddr=192.168.1.1;transport=udp,tcp
WS-BIND-URL             sip:mod_sofia@192.168.1.1:5086;transport=ws
HOLD-MUSIC              local_stream://moh
OUTBOUND-PROXY          N/A
CODECS IN               G722,PCMU,PCMA,GSM
CODECS OUT              PCMU,PCMA,GSM
TEL-EVENT               101
DTMF-MODE               rfc2833
CNG                     13
SESSION-TO              0
MAX-DIALOG              0
NOMEDIA                 false
LATE-NEG                true
PROXY-MEDIA             false
ZRTP-PASSTHRU           true
AGGRESSIVENAT           false
CALLS-IN                8
FAILED-CALLS-IN         1
CALLS-OUT               8
FAILED-CALLS-OUT        1
REGISTRATIONS           0




thanks
Matt


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_________________________________________________________________________
Professional FreeSWITCH Consulting Services: 
consulting@freeswitch.org
http://www.freeswitchsolutions.com

Official FreeSWITCH Sites
http://www.freeswitch.org
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http://www.cluecon.com

FreeSWITCH-powered IP PBX: The CudaTel Communication Server
http://www.cudatel.com

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_________________________________________________________________________
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consulting@freeswitch.org
http://www.freeswitchsolutions.com

Official FreeSWITCH Sites
http://www.freeswitch.org
http://confluence.freeswitch.org
http://www.cluecon.com

FreeSWITCH-powered IP PBX: The CudaTel Communication Server
http://www.cudatel.com

FreeSWITCH-users mailing list
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http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
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_________________________________________________________________________
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http://www.freeswitchsolutions.com

Official FreeSWITCH Sites
http://www.freeswitch.org
http://confluence.freeswitch.org
http://www.cluecon.com

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