[Asterisk-Users] RE: Asterisk-Users Digest, Vol 7, Issue 323

[Roberto Piola]

I fear that list digest did not forward to me all the messages...

buying cell phone adapters is quite unfeasible at this point, since the
installation at hand uses 8 BRI for outgoing calls, and the customer
negotiated very special rates for handling all the traffic through his voice
carrier. Moreover, in italy you have 4 cell phone operators, and you should
add a bunch of call phone adapters for each of them (call.operator A to
cell.operator B costs much more than land operator X to any cell. operator)

in another installation, with a single 4BRI card conntected to
point-to-multipoint ISDN lines, everything works fine (even calls to cell
phones), and land calls are fine. this is the problem that puzzles me.

-----Original Message-----
From: asterisk-users-request at lists.digium.com
[mailto:asterisk-users-request at lists.digium.com]
Sent: Monday, February 28, 2005 6:14 PM
To: asterisk-users at lists.digium.com
Subject: Asterisk-Users Digest, Vol 7, Issue 323
Date: Mon, 28 Feb 2005 18:07:42 +0200
From: Mark Elkins <mje at posix.co.za>
Subject: RE: [Asterisk-Users] Zaptel (Junghanns 4BRI card) to cell
	phoneproblem
To: Asterisk Users Mailing List - Non-Commercial Discussion
	<asterisk-users at lists.digium.com>
Message-ID: <1109606862.20322.13.camel at mje99.posix.co.za>
Content-Type: text/plain

On Mon, 2005-02-28 at 17:50 +0200, Herman Cremer wrote:
> http://www.psitek.co.za/gsm.html
> 
> 
> These guys are also in RSA, and Australia.
> This unit does exactly the same as the DigiCell,
> which mark is talking about, but is a much better
> product (and more expensive)
> 
> maybe they export ?

Except that when I've been to the USA - I've needed a 1900Mhz phone -
this is only 900 and 1800...

*GSM INTERFACE
*  GSM output 900MHz: Class 4/5, 2W EGSM
*  GSM output 1800MHz: Class 1, 1W DCS
*  SIM interface: 3V mini SIM


.... but look at the website (Hey, it looks like my box!) as the
features are what you are looking for...

I believe Motorola was one of the earlier producers of this type of
device - but would think that most of the manufacturers would have a
similar type of unit. Push the "Telephone access in disaster areas,
where wire-network infrastructure is damaged" point... :-)


> 
> -Herman
> 
> 
> On Mon, 2005-02-28 at 17:21, Mark Elkins wrote:
> > On Fri, 2005-02-25 at 16:29 -0700, Mr. James W. Laferriere wrote:
> > >  	Hello Mark ,  C. & All ,  Is this device available for sale
> > >  	in the US ?  All the digging I've only found outside US
> > >  	mentions of sales .  Any help appreciated .  JimL
> > 
> > No idea. The Unit I have is a locally manufactured device called
> > Digi-Cell - frmaritz (at) global.co.za is the email address on the box
> > it came in....
> > 
> > Its probably 900Mhz GSM only - in the US - You'll need a 1900Mhz unit???
> > 
> > 
> > > 
> > > On Fri, 25 Feb 2005, Mark Elkins wrote:
> > > > On Fri, 2005-02-25 at 13:46 +0000, C. Tomlinson wrote:
> > > >> Did you have to make any changes to use the premicell, or was it as
simple
> > > >> as an outgoing landline call?
> > > >> I am looking into doing this as you can get deals where calls
between chosen
> > > >> numbers are free :-)
> > > >
> > > > Absolutely no changes at all.... I did stick a Phone onto the 2-wire
> > > > input of the 'PremiCell' to check that all worked - before going via
> > > > Asterisk - but thats all.
> > > >
> > > > [part of the previous message]
> > > >> In South Africa, I have a 4-port ISDN BRI (Euro-ISDN) with
bristuff.
> > > >> Calls to Cell phones are no different to any other call...
> > > >>
> > > >> I also added a Digium 4-port analogue card - and have a 'PremiCell'
> > > >> connected to a Trunk line. The PremiCell is a fixed cell device
that
> > > >> gives dial-tone in the same way that a Telcom Trunk line would work
-
> > > >> except there is no copper to he exchange - just a stubby cellphone
> > > >> antenna.  In South Africa it is MUCH MUCH cheaper to make a Cell to
Cell
> > > >> call than from Telcom to Cell....
> > > >>
> > > >> I'm surprised that more people do not put down a 'PremiCell' type
device
> > > >> and route all Cell calls out through it...
>