HT9200

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Lucille
Posts: 15
Joined: Mon Feb 20, 2017 12:04 pm

HT9200

Post by Lucille » Wed Mar 08, 2017 11:14 am

HI.

I was trying to interface the DTMF generator (HT9200) to tel line.
I was able to hear the tones, but it's not dialing them!?!?!?!

Any idea? Any circuit ?? :(
I'm using an isolation transformer !!

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