I have a phone system at the front door of office my building and run by my landlord, and phone at the door calls one of my office phones and to let someone I press 9. What I am looking to set up an IVR that has a hidden code where it will return a 9 DTMF tone to the person it they type in the correct code.
Does anyone know how to set up a custom destination or something similar to have the Asterisk server send a 9. I was able to find the sendDTMF command (http://www.voip-info.org/wiki/view/Asterisk+cmd+SendDTMF) but I am not sure how to set that up.