help needed : change the message from the DTMF speaker

[david11g]

help needed

hi, i am trying to get the 2cabel's from the DTMF speaker to change the message forward on the LCD when pressing the keypad. all that without distorting the sound...
is it possible?
anyone have an idea?

help will be highly appreciated
thank you,
david.

 

[ark5230]

help needed

No ! does not seem possible the way you want.

 

[david11g]

Re: help needed

In what way it is possible?

 

[pranam77]

help needed

May we all know what is the idea behind the said application? May be you'll get better ways and sugessions to do that. Good luck

 

[harii74]

Re: help needed

As i come to know your problem that, When your telephone connection is established you need to work with DTMF so that parallely you want SMS setup.
If it so, You need to do little bit modification on your telephone itself.
1) You do a relay circuit,When connection is made, the relay is activated such a way DTMF circuit output connected to receiver part of your telephone should be disconnected.
2) As connection is closed( conversation is over) you can deactivate relay such a way that DTMF circuit connected to receiver part of your phone.