I want to use the WaitForRing command but don't know how to personalise it for a project at school. The problem is I am given this:
exten => 555,1,Answer()
exten => 555,2,WaitForRing(5)
exten => 555,3,SendDTMF(555) ,
where 555 is the phone number,....but the problem is I don't know what does SendDTMF do.....some help would be useful
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