I need asterisk to do the following:
1. asterisk Dial to callee
2. Callee pick up the call and the call is answered/ bridged
3. After X seconds, asterisk will inject DTMF tone
4. Caller will not be able to hear the DTMF.
Hi, I have more than 12 years of experience working with Asterisk projects, I can help you exactly with what you need, contact me to talk about details, so I can start on it.
REGARDS