[Asterisk-Users] Linux and Windows

[Karl J. Vesterling]

At 08:23 PM 11/1/2004, you wrote:

>Try reading what people say before ranting. He has a *CDMA* modem. Can you 
>offer him good modem support for a CDMA modem? If not, try to avoid making 
>yourself look so foolish.

Oh good gawd...  I thought he was rambling some obscure sort of part number 
from some fly by night electronics company.  Yeah, you're right...  That 
would cause significant impediments.

I had mistaken his claim for one of those WinMoDumbs that use the CPU to do 
the work of what would ordinarily be handled by the hardware package 
(Rockwell comes to mind.)


>Actually,  most CDMA modems use AT commands, just like most GSM modems do.

I wasn't speaking of the Hayes AT command set...  Actually, I expect and 
demand that if something is called a modem nowadays that it understand the 
hayes AT command set.  There were a few manufactured way back when that had 
their own command sets.  Heck, my ancient TRS-80 Model 100 had a built in 
modem that knew not of AT-Anything.

>  They both an extended set of the usual AT commands, with special 
> commands to access cellular related features.

With the difficulties of not having broadband I can understand why he's 
stuck with what he's got...
Personally, I like my hardware as adaptable as possible.
Suggestion:
http://www.arcelect.com/StarPoint_Digital_CDMA-1xRTT_Cellular_Modem.htm
(or something similar...  If your OS doesn't speak RS232c you're probably 
running Minix)

>  The GSM stuff is openly documented. I think the CDMA guys are a bit more 
> annal retentive, but they also have a spec for the standard CDMA modem 
> interface.

All Hail Phil Karn (KA9Q - Pioneer of CDMA)

GSM is popular in Europe, but CDMA has better coverage area, hence it's 
much easier to deploy since you don't need to have as many sites to cover a 
particular area.  Not as many sites = less cost to build the plant.


>Regards,
>Steve
>
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Best Regards,
Karl J. Vesterling
E-Mail: kjv at ken-ton.com
Yahoo Messenger: karl_vesterling
ICQ: 1548052
AOL Instant Messenger: n2vqm

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