Dear Sir I am facing a problem in VOIP , the call is not initiating it gives me errors , it is disconnected when i on the debug portion it shows me 0*10 , 0* 22 ,0*15, 0*11 errors.How can I troubleshoot these errors. Please give me a clue please let me guide how can I troubleshoot it and get problems solved in VOIP problem. My configuration is as follows: Site #1 config ______________ hostname city no ip subnet-zero no ip domain-lookup ip host wm 109.100.100.1 ip host main 172.17.0.50 ! voice-port 0/0/0 input-gain 6 connection-plar 7867 ! voice-port 0/0/1 input-gain 6 timeout interdigit 4 connection-plar 7868 ring number 3 ! voice-port 0/1/0 input-gain 6 connection-plar 7869 ring number 3 ! voice-port 0/1/1 input-gain 6 connection-plar 7870 ring number 3 ! voice-port 1/0/1 input-gain 6 connection-plar 7872 ring number 3 ! voice-port 1/1/0 input-gain 6 connection-plar 7873 ring number 3 ! voice-port 1/1/1 shutdown ! dial-peer voice 101 pots destination-pattern .T port 0/0/0 ! dial-peer voice 300 voip destination-pattern +78.. session-target ipv4:109.100.100.1 ! dial-peer voice 102 pots destination-pattern .T port 0/0/1 ! dial-peer voice 105 pots destination-pattern .T port 1/0/0 ! dial-peer voice 106 pots destination-pattern .T port 1/0/1 ! dial-peer voice 104 pots destination-pattern .T port 0/1/1 ! dial-peer voice 103 pots destination-pattern .T port 0/1/0 ! interface ethernet3/0 ip address 192.168.0.151 255.255.255.0 no ip directed-broadcast ! interface serial3/0 ip address 109.100.100.2 255.255.255.0 no ip directed-broadcast no ip mroute bandwidth 64 ! no ip classless ip route 172.17.0.0 255.255.0.0 109.100.100.1 ip route 192.168.0.0 255.255.255.0 192.168.0.150 no ip http server ! Site #2 config ______________ hostname main ip subnet-zero ! voice-port 0/0/0 input-gain 6 ! voice-port 0/0/1 input-gain 6 ! voice-port 0/1/0 input-gain 6 ! voice-port 0/1/1 input-gain 6 ! voice-port 1/0/1 input-gain 6 ! voice-port 1/1/0 input-gain 6 ! voice-port 1/1/1 shutdown ! dial-peer voice 201 pots destination-pattern 7867 port 0/0/0 ! dial-peer voice 202 pots destination-pattern +7868 port 0/0/1 ! dial-peer voice 203 pots destination-pattern +7869 port 0/1/0 ! dial-peer voice 204 pots destination-pattern +7870 port 0/1/0 ! dial-peer voice 205 pots destination-pattern +7871 port 1/0/0 ! dial-peer voice 206 pots destination-pattern +7872 port 1/0/1 ! dial-peer voice 207 pots destination-pattern +7873 port 1/1/0 ! dial-peer voice 301 voip destination-pattern .T. session-target ipv4:109.100.100.2 ! dial-peer terminator # process-max-time 200 ! interface ethernet3/0 ip address 172.17.0.50 255.255.0.0 no ip directed-broadcast ! interface serial3/0 ip address 109.100.100.1 255.255.255.0 no ip directed-broadcast no ip mroute-cache bandwidth 64 interface ethernet3/0 ip address 192.168.0.151 255.255.255.0 no ip directed-broadcast ! interface serial3/0 ip address 109.100.100.2 255.255.255.0 no ip directed-broadcast no ip mroute bandwidth 64 delay 200 fair-queue 64 256 0 compress stac ! ip classless ip route 0.0.0.0 0.0.0.0 109.100.100.2 no ip http server ! Rgds, Hasan Abbas