Hi everibody. I have the next problem: I successfuly can establish a call from PSTN. On the opposid side I have an IVR application (based on IBM's J323 Engine). When the call is established I can hear the IVR's announce. I can send DTMF signals, but it seems no audio is transfered from the phone to the IVR (or in my case from the AS5350 to the IVR). When I use NetMeeting to establish a direct call to the IVR everithing is OK. The AS5350 gw and the IVR's PC are on the same LAN (so there is no routing issue......i think). Can someone help me? Thanks in advance Vassil Kolarov Here is my as5350 configuration: version 12.2 no parser cache no service single-slot-reload-enable service timestamps debug datetime msec localtime show-timezone service timestamps log datetime msec localtime show-timezone no service password-encryption ! hostname tgr1 ! boot system flash flash:c5350-is-mz.122-2.XA.bin boot system flash flash:c5350-is-mz.121-5.XM4.bin boot system flash flash:c5350-is-mz.121-5.XM3 no boot startup-test logging buffered 16384 errors no logging rate-limit aaa new-model aaa authentication login default group radius aaa authentication login localauth local aaa authentication login h323 group radius aaa authorization exec h323 group radius aaa accounting connection h323 start-stop group radius enable secret 5 </body>$bGbR$BeglzldQd/VODWUIb1x8g/ enable password es ! username test password 0 test ! ! resource-pool disable clock timezone EET 2 clock summer-time EEST recurring last Sun Mar 3:00 last Sun Oct 4:00 syscon address 192.168.6.71 test syscon shelf-id 0 ! ! ! ! voice-fastpath enable ip subnet-zero no ip routing ip domain-name cnsys.bg ip name-server 212.39.64.18 ip name-server 193.108.24.4 ! no ip dhcp-client network-discovery isdn switch-type primary-net5 isdn gateway-max-interworking ! voice service voip fax protocol t38 ls-redundancy 0 hs-redundancy 0 h323 call start slow ! ! ! ! fax interface-type modem mta receive maximum-recipients 0 ! ! controller E1 3/0 pri-group timeslots 1-31 description BTC 5-2-1 ! controller E1 3/1 shutdown pri-group timeslots 1-31 description BTC 5-3-1 ! ! interface FastEthernet0/0 ip address 192.168.1.241 255.255.255.0 no ip route-cache no ip mroute-cache duplex half speed 100 no cdp enable ! interface FastEthernet0/1 no ip address no ip route-cache no ip mroute-cache shutdown duplex half speed 100 no cdp enable h323-gateway voip interface ! interface Serial0/0 no ip address no ip route-cache no ip mroute-cache shutdown clockrate 2000000 no cdp enable ! interface Serial0/1 bandwidth 128 no ip address no ip route-cache no ip mroute-cache shutdown clockrate 2000000 no cdp enable ! interface Serial3/0:15 no ip address no ip route-cache isdn switch-type primary-net5 isdn incoming-voice modem no cdp enable ! interface Serial3/1:15 no ip address no ip route-cache isdn switch-type primary-net5 isdn incoming-voice modem no cdp enable ! interface Group-Async0 no ip address no ip route-cache no ip mroute-cache group-range 1/00 1/59 ! ip classless no ip http server ! logging trap debugging logging facility local5 logging source-interface FastEthernet0/0 logging 192.168.1.214 dialer-list 1 protocol ip permit dialer-list 1 protocol ipx permit no cdp run ! route-map 1 permit 1 ! ! radius-server host 192.168.1.211 auth-port 1812 acct-port 1813 key totalgame radius-server retransmit 0 call rsvp-sync ! ! dial-peer voice 1007 voip destination-pattern 3 session target ipv4:192.168.1.216 codec g711ulaw !