[Freeswitch-users] RTP NAT issue

[Carlo Dimaggio]

Hi all,

I have a problem with RTP and NAT.
The scenario is Hosted PBX and Natted phones (yealink):

Phones (192.168.0.x) - NAT -> FS (public IP)

When I call FS (for example an IVR) from a Phone, FS send the RTP to the 
private address (192.168.0.x) instead to the public NAT IP.
The registration is ok:

freeswitch at internal> sofia status profile tenant1.bs.dev.voip.clio.it reg
1
Registrations:
=================================================================================================
Call-ID:        488014850 at 192.168.0.100
User:           202 at tenant1.test.com
Contact:        "Test 202" 
<sip:202 at 192.168.0.100:5062;fs_nat=yes;fs_path=sip%3A202%40<NAT_IP>%3A37710>
Agent:          Yealink SIP-T20P 9.61.0.70
Status:         Registered(UDP-NAT)(unknown) EXP(2012-06-06 19:01:55) 
EXPSECS(3232)
Host:           localhost.localdomain
IP: <NAT_IP>
Port:           37710
Auth-User:      202
Auth-Realm: tenant1.test.com
MWI-Account:    202 at tenant1.test.com


How I can tell FS to send the RTP Packets to the right address? I think 
is needed a "comedia mode" like in Asterisk (or RTPProxy in openser)...


Best regards,


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