41–44 of 44 posts
A developer's phone would operate as a modem.
No, that's what I thought at first, but actually OP is gaming his/her carrier: Vodafone has a promotion where it offers you 2Mb for every call you give or receive, that is over one minute long.
If each of his minutes spent transferring nothing gets him 2mb I suppose he is 1.58mb up if he can maximise his transfer.
Earlier quoted context omitted.
No, that's what I thought at first, but actually OP is gaming his/her carrier: Vodafone has a promotion where it offers you 2Mb for every call you give or receive, that is over one minute long.
56kbps is 0.42 megabytes per minute. If each of his minutes spent transferring nothing gets him 2mb I suppose he is 1.58mb up if he can maximise his transfer.
However, I think that you can't negotiate a 56kbps link ( http://en.wikipedia.org/wiki/V.90_%28recommendation%29 ) over a cell phone.
Ordinary copper telephone service has enough bandwidth to transmit a full range of audio signals, in fact more than the voice can produce or the ear can hear. Modems exploit this fact.
But cell phones employ lossy compression, and if I understand correctly, one of the "first things to go" are the higher frequency noises. Why transmit what the ear can't hear?
Oh, somebody smarter than me has addressed this question: http://superuser.com/questions/748154/use-a-smartphone-as-a-...
Earlier quoted context omitted.
56kbps is 0.42 megabytes per minute. If each of his minutes spent transferring nothing gets him 2mb I suppose he is 1.58mb up if he can maximise his transfer.
Ok, now I see your point. However, I think that you can't negotiate a 56kbps link ( http://en.wikipedia.org/wiki/V.90_%28recommendation%29 ) over a cell phone. Ordinary copper telephone service has enough bandwidth to transmit a full range of audio signals, in fact more than the voice can produce or the ear can hear. Modems exploit this fact. But cell phones employ lossy compression, and if I understand correctly, on…