Outbound call can only last 8 mins

[jjia]

Hi all,

Working environmet:

Voice Gatewat 3725 with T1/PRI,IOS c3725-is-mz.123-9.bin,

MGCP, CCM 3.3(3)sr4a.

Configured 6.1[2-9]X[0-9]XXXXXXX route pattern.

The issue was that the outbound calls can only last around 8 mins, and tried to have an outbound call again, got the fast busy signal. Using debug voice ccapi inout command on voicegatway, it looks the 2nd try did not kick in the voice gateway. while inbound call can still work.

Check the gateway status on CCM, it is registered.

Only after reset the gateway on CCM, can have outbound calls again.

Did someone experience this before? Any suggestion?

Thanks

[mchin345]

The following documents could be of some help in verifying the config and also for troubleshooting.

Mapping Outbound Calls to Unique FXS/FXO Ports on Analog Gateways

http://www.cisco.com/en/US/tech/tk652/tk90/technologies_configuration_example09186a00801bc341.shtml

Mapping Outbound VoIP Calls to Specific Digital Voice Ports

http://www.cisco.com/en/US/tech/tk652/tk90/technologies_configuration_example09186a00801c0a88.shtml

Troubleshooting and Debugging VoIP Call Basics

http://www.cisco.com/en/US/tech/tk652/tk701/technologies_tech_note09186a0080094045.shtml