Telecom used to (and still do, I believe) keep a very close eye on each phone pair to make sure you didn't add more handsets to your service than you had rented from Telecom (this was quite a few years ago). They didn't want anything impacting their central office equipment, and a modem that was not certified to work on their equipment definitely counted as that.
Remember too that no dial-up modem in Australia would answer the Bell-standard tones emitted by the built-in modem, so there was hardly any point connecting it up anyway. You could not get the integrated telephone cord in Australia, and I don't think you could get an acoustic coupler either. External modem was the way to go, which opened up the possibility of going faster than 300 baud! :-) Cheers, Bert On 9/25/20 5:08 PM, Jeff Gonzales wrote: > What's up with that? How would anyone know? What about the acoustic > coupler? > > On Fri, Sep 25, 2020 at 5:45 PM Bert Put <b...@bellsouth.net > <mailto:b...@bellsouth.net>> wrote: > > As an owner of a M-100 while in Australia, I remember that we were > forbidden to connect the built-in modem to the Australian telephone > network. We had to use an external modem. I do not know if that is the > same in the UK, but it's quite likely. > > Cheers, Bert > > On 9/25/20 4:31 PM, Peter Noeth wrote: > > Could it be that code changes might be related to the modem needing to > > be CCITT 300 instead of BELL 103? The modulation is basically the same > > but some of the tones are different. Also the cadence for going off > > hook, detecting dialtone, and dialing are different as well. To > properly > > answer a call, the code would have to detect the dual ring they use. > > > > That is if the internal modem is still there, and the code has not > been > > modified to use an external modem of some kind. > > > > Regards, > > > > Peter > > > > > > > --------------------------------------------------------------------- > > > > Message: 1 > > Date: Fri, 25 Sep 2020 16:39:58 -0400 > > From: Stephen Adolph <twospru...@gmail.com > <mailto:twospru...@gmail.com> > > <mailto:twospru...@gmail.com <mailto:twospru...@gmail.com>>> > > To: m...@bitchin100.com <mailto:m...@bitchin100.com> > <mailto:m...@bitchin100.com <mailto:m...@bitchin100.com>> > > Subject: Re: [M100] European T102 - different! > > Message-ID: > > > > > <camcmnv7z9eyqtjvk1tms4dkdvo1r+2c+6eq_fykiodvaul7...@mail.gmail.com > > <mailto:camcmnv7z9eyqtjvk1tms4dkdvo1r%2b2c%2b6eq_fykiodvaul7...@mail.gmail.com> > > > > <mailto:camcmnv7z9eyqtjvk1tms4dkdvo1r%2b2c%2b6eq_fykiodvaul7...@mail.gmail.com > > <mailto:camcmnv7z9eyqtjvk1tms4dkdvo1r%252b2c%252b6eq_fykiodvaul7...@mail.gmail.com>>> > > Content-Type: text/plain; charset="utf-8" > > > > received a ROM image from a UK T102, and the rom is really > different! > > I've attached it here. > > Large area of difference in the ~5100h to ~5700h area, which > is TELCOM > > > > On Thu, Sep 24, 2020 at 1:34 PM Josh Malone > <josh.mal...@gmail.com <mailto:josh.mal...@gmail.com> > > <mailto:josh.mal...@gmail.com <mailto:josh.mal...@gmail.com>>> > wrote: > > > > > On Thu, Sep 24, 2020 at 1:31 PM Stephen Adolph > > <twospru...@gmail.com <mailto:twospru...@gmail.com> > <mailto:twospru...@gmail.com <mailto:twospru...@gmail.com>>> > > > wrote: > > > > > >> > > >> > > >> here you can see the different code in silkscreen, and a > variable > > >> resistor mounted above the main ROM. > > >> > > >> > > > Huh - interesting. Yeah, curious about the changes on that > machine. Do > > > keep us posted! > > > > > > -Josh > > > > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: > > > > <http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200925/8560b350/attachment-0001.html> > > -------------- next part -------------- > > A non-text attachment was scrubbed... > > Name: UK_main_rom_102.bin > > Type: application/octet-stream > > Size: 32768 bytes > > Desc: not available > > URL: > > > > <http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/attachments/20200925/8560b350/attachment-0001.bin> > > > > ------------------------------ > > > > >
