[SR-Users] issues with RTP on different hosts & dispatcher mod

[Infinicalls Infinicalls]

Hi,
 I whenever I try to add rtpproxy to my config file

modparam("nathelper", "rtpproxy_sock", "udp:firsthost:12221
udp:secondhost:12221")

, I get this error.

 0(45810) ERROR: <core> [modparam.c:139]: set_mod_param_regex():
parameter <rtpproxy_sock> of type <1> not found in module <nathelper>

 0(45810) : <core> [cfg.y:3435]: yyerror_at(): parse error in config
file /usr/local/etc/kamailio/kamailio.cfg, line 423, column 82: Can't
set module parameter
ERROR: bad config file (1 errors)

 0(45810) INFO: <core> [sctp_core.c:53]: sctp_core_destroy(): SCTP API
not initialized

I am having with_nat.


Secondly, I tried with dispatcher and it works for one way calls. ie.
User1 is able to call User2, but vice versa is not possible. Both RTP1
and RTP2 are in different machines and Kamailio sits on a different
machine. All have identical network setups. And no NAT.


Any idea. Can somebody guide me? thanks.

regards
Ganesh Kumar