Yesterday I was out to a customer to move a phone, and they tell me they can't to end-to-end DTMF on an inbound call. I tested, and it doesn't work. On an outbound call it's fine. I was hunting through the install book, and couldn't find an option that looked like it would do that.
I called back to my office, had my secretary push a couple buttons and I heard the tones.
What option am I missing. The system is running 3.5, but it was only the 2nd one I installed, and was still on a learning curve.
Any suggestions would be appreciated.
Thanks
