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Is there a standard for Call Progress tone level?

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tly

tly

Technical User
Joined
Apr 22, 2001
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I am trying to find out if there is a standard for Call Progress tone level from the audio output of the Modem. I saw somewhere mentions that -13dBm0 for the tone level. What would it be in term of output Voltages of the modem to the audio device input?
 
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