Hello, i have been reading the archives and cant find the answer to my question. Here is the scenario, SIP dallas gateway --> IAX2 g729 codec --> mex gw So i send all my sip traffic on iax2 to mexico using g729 and trunk mode, but the trunk debug shows only mexico doing trunking, in mexico i get RX BW 40% higher than TX BW. on dallas server when i get: IAX2 Trunk Debug Requested Beginning trunk processing. Trunk queue ceiling is 128000 bytes per host - Trunk peer (200.xxx.xxx.190:4569) has 0 call chunks in transit, 0 bytes backloged and has hit a high water mark of 0 bytes Ending trunk processing with 1 peers and 0 call chunks processed on mexico server i get: Beginning trunk processing. Trunk queue ceiling is 128000 bytes per host - Trunk peer (216.xxx.xxx.254:4569) has 19 call chunks in transit, 0 bytes backloged and has hit a high water mark of 6400 bytes Ending trunk processing with 1 peers and 19 call chunks processed So my bw monitor tool shows this on mexico Iface RX(KB/sec) TX(KB/sec) Total(KB/sec) lo 0.000 0.000 0.000 eth0 62.023 27.814 89.837 sit0 0.000 0.000 0.000 Total 62.023 27.814 89.837 My configuration on Dallas (Sending Calls) iax.conf [general] bindaddr=216.xxx.xxx.254 bindport=4569 bandwidth=low echocancel=no jitterbuffer=no tos=lowdelay disallow=all allow=g729 [mtygw] type=friend trunk=yes context=mexico-out username=mtygw secret=******* notransfer=yes host=200.xxx.xxx.190 disallow=all allow=g729 extensions.conf MTYGW=IAX2/dallas:******@200.xxx.xxx.190 exten => _0115281.,1,Dial(${MTYGW}/${EXTEN:7},31) My configuration on Mexico (Reciving Calls) iax.conf [general] bindaddr=200.xxx.xxx.190 bindport=4569 bandwidth=low echocancel=no disallow=all allow=g729 allow=gsm jitterbuffer=no tos=lowdelay [dallas] type=friend trunk=yes context=mexico-out username=dallas secret=***** host=216.xxx.xxx.254 notransfer=yes disallow=all allow=g729 mexico only gets calls from dallas so theres no need to show you the extensions.conf setup. Any ideas what can it be wrong that i get only trunking on one side? thank you guys p.s. im getting the timers on dallas from ztdummy im using kernel 2.6.12-10-686-smp and im getting the timer on mexico from the digium card. Miguel Cavazos