| For cancelling the automatic call back, make sure the other party picks them up. Otherwise the automatic call back will keep ringing back to the person. To cancel it, one way you can do is to memory reinitialise the extension. But of course, don't do it too often as it will damage the card.
If still can't then you will need to check the automatic callback features prefix ? Check and see if there's a prefix you can use to disable the automatic callback. If there's none then you will need to try restarting the system.
Automatic callback can be quite a pain in ass if it's not used properly. I have customers often having this kind of problem and in the end we are forced to disable them to minimise the problem.
If i'm not mistaken, older release will have such problems. For release 6 onwards, this bug has been fixed. May I know what release you are using for your system ? |