GSM Router / Gateway
Currently calls to mobile phone's contribute to a
large percentage of high bills. Incorporating this equipment into a Tel
System allows all users to dial mobile phones via the mobile network,
thus reducing costs by approximately 30 to 40% and further allowing
mobile phone bill savings by allowing mobiles to call the office at
mobile to mobile rate also.
Why use a gateway?
To illustrate, we will take a hypothetical user. [note: all costs are
made up, Cellfone is a fictitious service provider.
Fred Bloggs Limited has a field staff of 20 people, all using Cellfone
cellular phones.
Fred Bloggs is given preferential call charge rates because of the size
of his account. This means that calls between his staff on their
Cellfones are charged at 9c per minute instead of the usual [cellular
to cellular] rate of 35c per minute.
However, when someone at the office calls one of these mobiles, Fred
Bloggs is charged 30c per minute by Eircom. But, by using a gateway
connected to the Cellfone network at the office, calls are charged at
9c per minute: a significant saving.
To allow all office staff to use this Cellfone premicell means
connecting it to the telephone system.
How is it used?
The gateway is a single device and may be found at a customer's
home/office simply plugged into the mains with a standard telephone on
the desk. The user simply picks up the telephone and makes a call
direct over the cellular network.
The Gateway acts as an analogue exchange line and usually gives dial
tone when the telephone goes off-hook.
When connected to a telephone system,The Gateway can be ISDN or
Analogue,dependant on system requirements. The extension user goes off
hook
and dials the cellular number. The telephone system reads the number
and gives the call to the Gateway[s] which then carry the call over
the cellular network to the called party.