May 222014
 

yes, it has a mobile number and can dial in and out (I was surprised that the GSM adapter would work with pulse dialling, so thought I’d try it, although its not much fun with modern long phone numbers).

NB: the second video (with an outbound call) is howled because I had my test set on monitor mode in order to record the audio from the phone circuit, and forgot the carbon mic on the phone gives a strong output; be careful if you are listening on headphones or with big/expensive loudspeakers!

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