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Re: Put your BBS back online with MagicJack?
In article <38f247ca-0e85-4ae6-9f3d-8fa7728f004e@f16g2000vbf.googlegroups.com>,
<zwsdotcom@gmail.com> wrote:
>On May 31, 9:58�am, Steven Lichter <diespamm...@ikillspammers.com>
>wrote:
>> That should answer his question. �The problems that you had are pretty
>> much what we had with the start of BBS's in the early days. �You are
>> dealing with voice �grade lines, routers and other equipment around the
>
>The problem is that VoIP of all flavors uses audio encoding with
>acoustic models designed to reproduce a human vocal tract. It's not
>designed for data. GSM has the same issue, which is why GSM "modems"
>bypass the speech codec and transmit the data directly out-of-band.
>The real "modem" (modulates digital data into an audio signal) lives
>at the central station (where the GSM-to-POTS interface lives).
PCM audio is an option with some VoIP systems, but probably not with
MagicJack. My home phone line is provided by a Grandstream HT-286 ATA, with
service provided by Gizmo5. The HT-286 has several compression options, two
of which are variations of PCM (ulaw and alaw). Bandwidth usage is higher,
but voice quality is about equal to POTS most of the time.
I haven't tried hanging a modem off of it, though. There's probably still
some added latency that'd keep faster speeds from working. 2400 bps might
be doable...maybe even 9600 bps or 14.4 kbps, but all of that is just
speculation.
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