Hi all,
I have a question about Control RTPProxy in
Bridge mode with distributed Kamalio topology, including a SIP
Load Balance, RTPProxies and some SIP Proxies behind.
SIPProxies control RTPProxy by Route [NATMANAGE].
PUBLIC IP ---- Load Balance
-----> SIP Proxies
|
| control
socket
PUBLIC
IP < ----- RTPProxy <-----------------|
In the standalone Kamailio solution (only
one SIP Server – without Load Balance), I configured RTPProxy
bridge mode, works PERFECTLY!!! , BUT in the distributed
Kamailio solution (LoadBalance –> Proxies) has big issue
with RTP:
- UA
in front of NAT has only upload direction (1 way RTP) but UA
behind NAT has both direction (2 ways RTP).
RTP stream from
UAC ------ > NAT ------ > RTPProxy Public Interface
------ > RTPProxy Local Interface -------> UAS in local
area network
RTP stream from
UAS in local area network ------ > RTPProxy Local Interface
-------> STOPs HERE!!!, NOT Transfers out
The RTPProxy control is performed on the
SIP Proxy (Route NATMANAGE has many cases with flags WFROCEE,
WFROCEI, WFROCIE).
In the case the same UA in front of NAT
call (RTPProxy mode “WEE”), the call occurs normally, RTP
Streams is OK on both sides, but the call in cases EI and IE
has problems above.
What could be going on?