We are connecting two QSIG voice switches through a compressed VoIP trunk (E1, except channel 15 and 18) using two cisco 2620 routers with IOS 12.2(8)T4, and NM-HDV-1E1-30.
Switch1 Router1 Router2 Switch2 (network) (user) (network) (user) With this setup we can connect any call originating from switch2 to switch1 direction. But a call originating from switch1 does not connect the *voice path* after several successful calls when under moderate/heavy load. (ie: the call is connected but voice is not heard by either party) Shutting down the voice port and bringing it up again could resolve this temporarily. But after several calls, same problem occurs. Calls from switch2 to switch1 continue to connect properly. Config summary of Router1 -=-=-=-=-=-=-=-=-=-=-=-=-=-=- voice-card 1 ! isdn switch-type primary-qsig call rsvp-sync ! controller E1 1/0 framing NO-CRC4 pri-group timeslots 1-14,16-17,19-31 ! interface Serial1/0:15 no ip address no logging event link-status isdn switch-type primary-qsig isdn incoming-voice voice isdn contiguous-bchan no cdp enable ! voice-port 1/0:15 ! dial-peer cor custom Config summary of Router2 -=-=-=-=-=-=-=-=-=-=-=-=-=-=- ! voice-card 1 ! isdn switch-type primary-qsig call rsvp-sync ! controller E1 1/0 framing NO-CRC4 pri-group timeslots 1-14,16-17,19-31 ! interface Serial1/0:15 no ip address no logging event link-status isdn switch-type primary-qsig isdn protocol-emulate network isdn incoming-voice voice no isdn T309-enable isdn contiguous-bchan no cdp enable ! voice-port 1/0:15 ! dial-peer cor custom ! I have not included the dial-peers as they seems to work properly. Any ideas what the problem might be? Thanks! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=49139&t=49139 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]