I suppose it depends on the phone, the network, which codec, and what kind of noise cancelling was being used.
Just yesterday I was on my cell phone and the alarm tone from my UPS was nice and loud to me, but the person on the other side couldn't hear it at all. On May 25, 2017 2:03 PM, "Kurt McCullum" <kurt.mccul...@att.net> wrote: > Yes. I actually took a four conductor 3.5mm plug and tried all sorts of > wiring configurations. My cell phone tests for a load and switches its > configuration based on what it thinks is installed. This can be verified by > a small icon on the phone which appears when a handset or headset is > attached. When I plugged in the novelty headset, it worked for talking. But > my 102 would spew garbage when a connection was made through the acoustic > couplers and the handset. > > I'd love to see it work, but I'm not sure how useful it would be. > > Kurt > > > On Thursday, May 25, 2017 10:48 AM, Andrew Roach <ajroac...@gmail.com> > wrote: > > > Normal headphones are TRS. > Normal headsets are TRRS. > > Did you try with a TRRS connection? > > On Thu, May 25, 2017 at 1:16 PM Kurt McCullum <kurt.mccul...@att.net> > wrote: > > I tried this exact setup more than six months ago and I could not get it > to work. Perhaps my novelty handset wasn't loud enough. My couplers work > with a land line phone just fine. > > It's really cool to see someone who actually got it working. I'd be > interested in knowing the make of the handset. But as John said, a direct > audio connection 'should' work better. But my cell phone wouldn't allow it > because a direct connection didn't provide the load that an earpiece and > mouthpiece provide so it assumed I had plugged in a set of headphones. It > was a frustrating test. I'm sure someone with more electronics skill that I > have could figure it out. > > All that being said. The end result is a 300 baud connection. That was one > of the driving reasons for putting the virtual modem mode into mComm for > Android. That way I could 'Dial' into any BBS through my phone using a > serial connection. The connection speed is 19200. Of course the screen > limits the useful speed to about 600 baud. > > Kurt > > > On Thursday, May 25, 2017 9:50 AM, Andrew Roach <ajroac...@gmail.com> > wrote: > > > I thought cell phones couldn't be used for BBS connections? > > If that works, I very much want to explore it more. > > On Thu, May 25, 2017 at 11:36 AM John R. Hogerhuis <jho...@pobox.com> > wrote: > > Interesting. I would have given that a low probability of working. Well if > that works you'd think a direct connect cable would be even better. > > Opens up a whole new possibility for remote usage of Model Ts. > > Does anyone know what would be needed for a direct to headphone jack > connection? > > > -- John. > > > > > >
