Atcom have just sent me an IP4G - an Asterisk IP-PBX with 4 GSM ports.
It's like 4 GSM mobiles (and an Asterisk server) all in one box. Each
GSM radio has it's own SIM so you could use different carriers based on
the number you are calling or time of day.
Below is a photo with a MP01 for comparison. My box just has two GSM
ports installed at the moment, so only two GSM antennas.
http://rowetel.com/images/mp/ip4g_with_mp01.jpg
Combined with the VTE, this box could be the ideal back-end for a
Village Telco that has only GSM connectivity available. This is what I
plan to use in Timor Leste.
Not sure about cost, edwin@atcom will be able to tell you when he
returns from the Chinese New Year vacation.
Cheers,
David
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No although astfin.org offer a single GSM module for the IP04.
Hi, Mathias,
not CDMA at the moment. but we have plan to develop the 3G module this year.
Regards,
Edwin
One application I can think of is making cheap national calls to
mobile phones (and to fixed) via the MP mesh, by having 4 different
cards from various operators.
Because GSM operators usually have affordable rates in intranet calls,
the call can be routed via the cheapest rate accordingly ?
It would like, I am trying to call a Vodafone subscriber, so the the
call will be routed via the Vodafone SIM. It would be really
interesting
if you can combine with these intra-net flat rate subscriptions. For
instance in Sweden the SIM I use I can make unlimited calls to
subscribers using the same network for 2€ per month.
Have I missed something with the possibilities of IP4G ? ?
-Steve
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Steve Song
Telecommunications Fellow, Shuttleworth Foundation
email: steve...@shuttleworthfoundation.org
work: +27 21 970 1220
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Seems like a really interesting product. But what is the main advantage of this would you say ?
Hello,
Sure, LCR (least cost routing), as you describe, is one application. But in many parts of the developing world the only way to get a voice line (and increasingly Internet as well) is through a cellular network, usually GSM. So GSM gateways are critical in such environments.Seems like a really interesting product. But what is the main advantage of this would you say ?
Here in Accra where I live, there's a 4-6 months waiting period to get a landline installed, if you're lucky to get it at all. So many people and even companies simply avoid the hassle and instead get GSM lines, usually a bunch of Fixed Cellular Terminals.
The latest stats from the telecom regulator here: 450k installed landlines countrywide (out of which I'm thinking only about 40-50% may be working -- mine has not worked for over a year), while there are 8-million-plus mobile subscribers (actually that figure is activated SIMs, not individual subscribers -- many people have SIMs for all 5 operators due to high inter-connection charges).
Off Topic: I'm currently testing a device called "Connecto", an ALL-IN-ONE device from ITS Telecom in Israel [http://its-tel.com/] featuring two GSM gateways, one 3G data gateway, Asterisk-based PBX, ADSL modem, Wireless LAN, 4-port switch, Ethernet WAN port and 4 programmable FXO / FXS ports. The one I have have all of these, but they also sell other models with various combinations of these interfaces.
Regards,
Edwin
-----Original Message-----
From: village-...@googlegroups.com [mailto:village-...@googlegroups.com] On Behalf Of Besian Istrefi
Sent: Tuesday, March 02, 2010 3:56 AM
To: village-telco-dev
Subject: Re: IP4G four port GSM IP-PBX
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