I build an IVR with ARI Asterisk and my issues is
by the choice of the user, they have to enter a number of his command, my problem is sometime they was wrong and touch the delete touch in their phone.
I can not get the value of this touch, only [0-9],* and # however if they put on this touch, it means the last digit is wrong and I don’t have to considere it .
For example: the enter 15789 and put on the touch delete, it mean the number is 1578.
Is there any way to get the value of this touch or something similar
Thanks a lot