[Asterisk-Users] Grandstream BT100 - Does not recognize DTMF

[Kanuri, Seshu (Company IT)]

One of my customers use Grandstream for ASTCC and it suddenly stopped
recognizing 
DTMF for my ASTCC Application. 

When ASTCC asks to enter destination number, and when the the digits 
Are entered, the phone keys does not take any of them. They are dead.

Any suggestions

Seshu Kanuri 
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