Yes it is. I will be most interested to learn exactly how the MacPhone hardware works though. I know it basically becomes a pass-through external speaker for the Macintosh and uses DTMF touch-tone signals to control the phone, but I am unclear as to exactly how that works.
In other words, in order to send the off-hook signal, does the receiver actually have to be lifted? Or will the DTMF signal trigger the hardware connection? In which case, I would expect the external speaker would then act like a speakerphone, until the receiver is lifted (optimal). In which case, does the receiver hook merely act like a headphone switch, cutting off the signal to the external speaker? If so, can the phone be returned to the hook, without disconnection the call (on-hold) – i.e. the on-hook signal is only sent from within the software?
Or, does the phone control the on/off-hook signaling like a regular phone? In which case, you would have to pick up the receiver first, before clicking "dial". And while hanging up the phone physically ends the call, does the software continue timing the call, until you click "hang-up"? Either way, the physical hook must act like a headphone jack as well, disconnecting the pass-through speaker while the phone is in use. I sort of think it is this latter low-tech solution, otherwise, why not provide a microphone jack to turn it into a true speakerphone? I suppose poor noise cancelation in those days would have been a factor, but a headset jack would have been nice and made much more sense in an office setting.
The HabaDialer was basically this kind of interface box, without the attached phone, and comes with warnings in some reviews that causing the Mac to beep or otherwise produce sound during the call could disable your callers hearing briefly! But unlike the Habadex software, which was designed to work with a modem as well, the MacPhone most likely does not allow that kind of interaction. It would be interesting to see if the MacPhone MacDialer software offers the option of connection type.
Of course, even with a limited DTMF style phone software interface, using it with a modern speakerphone instead of the MacPhone would be a great way to utilize a 128K Mac.
I also have to wonder if that 200 name contact limitation is a function of RAM, or an actual restriction of the software. In which case, I would think 200 would be more than a 128K could handle and a Mac Plus could upwards of 1600!
Can't wait for you to get it! The more I think about it, this was a bargain, sorry I didn't see it first! :beige: :beige: