best settings for old bell 1960 phone (with obi200)

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darth458:
Do the default settings for dial pulse do a good job on on old black bell phones from the late 50's?

I set transmit and receive to 12 dB but the audio is still a little weak. Do I need to change the impedance?

I also set the ringer to 80V but I am still unable to register even by using a DMTF recorded set of
tones into the microphone

SteveInWA:
Please stop posting the same questions over and over in multiple places.

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