<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Dear all <br>we are facing a problem on inbound calls to FXO , the VIC-4FXO is installed on Cisco 2801 router in the VIC Slot , the outbound calls to the PSTN are working fine without any problem , the problem is when you try to call the line connected to FXO port .<br><br>IOS ver : c2801-ipvoicek9-mz.124-15.T7.bin<br>PVDM : 16-channel (G.711) Voice/Fax PVDMII<br><br>the voice ports configuration are as foloow<br>voice-port 0/0/0<br> supervisory disconnect dualtone mid-call<br> supervisory custom-cptone pharos<br> timeouts call-disconnect 3<br> timeouts wait-release 3<br> connection plar opx 400<br> description phone line 33042038<br> caller-id enable<br>!<br>voice-port 0/0/1<br> supervisory disconnect dualtone mid-call<br> supervisory custom-cptone pharos<br> timeouts call-disconnect 3<br> timeouts
wait-release 3<br> connection plar opx 400<br> description phone line 33042037<br> caller-id enable<br>!<br>voice-port 0/0/2<br> supervisory disconnect dualtone mid-call<br> supervisory custom-cptone pharos<br> timeouts call-disconnect 3<br> timeouts wait-release 3<br> connection plar opx 400<br> description phone line 33042068<br> caller-id enable<br>!<br>voice-port 0/0/3<br> supervisory disconnect dualtone mid-call<br> supervisory custom-cptone pharos<br> timeouts call-disconnect 3<br> timeouts wait-release 3<br> connection plar opx 400<br> description phone line 33042046<br> caller-id enable<br>!<br><br>the outbound dial-peer are configured as follow<br><br>dial-peer voice 1 voip<br> destination-pattern ...<br> modem passthrough nse codec g711ulaw<br> session target ipv4:100.100.100.100<br> dtmf-relay cisco-rtp rtp-nte h245-signal
h245-alphanumeric<br> fax rate disable<br> no vad<br>!<br>dial-peer voice 2 voip<br> destination-pattern ...<br> modem passthrough nse codec g711ulaw<br> session target ipv4:100.100.100.99<br> dtmf-relay cisco-rtp rtp-nte h245-signal h245-alphanumeric<br> fax rate disable<br> no vad<br><br>when you do show voice call summary i found that the VTSP state of the port is S_WAIT_RELEASE_NC which means the port is waiting to terminate the call<br>the VPM STATE is changing from FXOLS_RINGING ( at this time the caller on the PSTN is hearing a ringback ) and FXOLS_OFFHOOK .<br><br>when debuging the VTSP i got something like Disconnect Cause = 38 and TONE=FAST BUSY<br><br>the state where the port stuck at, indicating that the FXO port is waiting to terminate the call .<br><br>also , the problem is very strange since if you reload the router , or power off then power on the router many times , the problem
disapears :D:D:D:D<br><br>I have tried to change the router completely , replacing the FXO card , trying different IOS versions but nothing happened.<br><br><br>anyone has face a problem like this before ? , if you need any debug or show please contact me.<br><br>Note 1: the same Router configuration ( FXO , PVDM , IOS ) is already working without any problem in another site.<br>Note 2: the PSTN line is ok since it's working well on analog phone .<br><br><br><br><br><br><br><br><br></td></tr></table><br>