2

Is there any way to receive and identify DTMF signals when you get a phonecall? I found these two functions (extractNetworkPortion & extractPostDialPortion), but I can't seem to get DTMF signal send by phonecalls.

Also, what is the shortest delay you can have for sending DTMF signals when calling someone?

Rob Hruska
  • 118,520
  • 32
  • 167
  • 192
Andreas
  • 2,007
  • 5
  • 26
  • 37

2 Answers2

1

Unfortunately this is not possible in standard Android platform (as of the latest version, 3.1)

Sarwar Erfan
  • 18,034
  • 5
  • 46
  • 57
  • Does that means android sipmanager doesnt have any feature to receive dtmf tone – Tim Oct 18 '19 at 08:46
0

It is not in SDK but you can make it.

Look at this project :

http://code.google.com/p/dtmf-decoder/source/checkout

Dany Pop
  • 3,590
  • 2
  • 21
  • 28