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Recently, my wife's phone started acting weird in that when connected in a phone call, pressing the touch tone keypad is not working. You can hear the tone being pressed in the speaker, but the other end of the phone call is not getting the tone transmitted.

What might be causing this and how could I go about getting this fixed? She is running CyanogenMod7 on her HTC Incredible.

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3 Answers 3

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In Settings - Phone settings


In Dialer - Menu -Settings

You'll find an option for DTMF. Try changing that to different values. It might even have been turned off.

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I'm not finding either of those in the settings for CM7.1. – WilliamKF Oct 14 '12 at 12:56
@roxan Are you sure it's from this version? – Secko Oct 14 '12 at 17:58
Actually no. I assumed after reading couple of post this is where it should be. Guess I also have to take my answer down :) – roxan Oct 15 '12 at 3:35

I had a similar problem of not hearing the touch tones. It turned out to be that the volume for "Music, video, games, & other media" was set to the lowest level. "Settings > Sound > Volume" Maybe this will help someone.

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I got this to work under CM 11 by opening the Phone app, hitting the dotted line for settings, then un-checking the "Dial pad touch tones" option. I can't hear the touch tones anymore, but at least I can access my voicemail.

I have an international i9300.

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