Cisco FXO Disconnect issue
Cisco FXO Disconnect issue Prob: ~~~~ The most common symptoms of this problem are phones that continue to ring when the caller has cleared, or FXO ports that remain busy after the previous call should have been cleared. Refer Cisco document ( Understanding FXO Disconnect Problem ) Refer external source ( Understanding FXO Disconnect Problem ) Solution : ~~~~~~~ FXO port dont know the diconnect frequency used in pstn line. we solve this issue by capturing the parameters( frequency and cadence) create a custom cptone using the command ' voice class custom-cptone ' using this command we can customize disconnect tone,busy tone,pstn line parameter.... how to capture PSTN parameters for FXO disconnect ??? Method 1: ~~~~~~~ Goto the following webpage ( World PSTN Tone Database ) webpage contains international call progress tones search your country and select tone then voice class custom-cptone dualtone disconnect frequency cadence ... On your FXO port, you will want a configuration...