Telephone channel is hung

When a telephone channel remains in an off-hook state after the caller has hung up, check the following:

Does the voice application state table terminate with a CloseEverything or TerminateCall action?
Voice applications require a state to indicate that the channel is no longer in use. CloseEverything releases all resources allocated to the application, including hanging up the telephone line and closing host sessions. TerminateCall does not terminate state table processing, but it does disconnect the current caller. Ensure that the state table uses one of these actions to hang up the phone line.

For information about CloseEverything and TerminateCall, see Blueworx Voice Response for AIX: Application Development using State Tables.

Have you stopped and restarted the channel?
Sometimes stopping and restarting the channel can resolve temporary problems. Use the information provided in Blueworx Voice Response for AIX: Configuring the System to disable the channel then activate it again.