send a specific DTMF phone as soon as hangup the call on asterisk

Question

I have a phone kind of remote device which will initiate a call to asterisk . On other side I have an IP phone registered with asterisk . When the conversation is over and the person at IPPhone hangup the call , I wanted to send a specific DTMF tone ( for example * or # ) to the remote device so that the device can be reset to on-hook state and ready to make another call .

Can someone tell me how it can be achieved . *The person at ipphone side will not press any key so i want asterisk to do that .

Answer 1

Try this:

[mycontext]
exten => 123456,1,Dial(SIP/123456,,gF)
exten => 123456,n,SendDTMF(#)

123456 is IP phone and calls from remote device should hit context mycontext.