Zed-3 GS8 Bedienungsanleitung PDF herunterladen (Seite 5)

PSTN

GSM

CDMA

analog

Traditional PBX

LAN

Multiple GS8

LAN

GS8

Customer

mobile

phone

IP Phone

Client

application

IP PBX

GSM

CDMA

Middleware

running on

computer

Data base

Module 2

When a call is received on provider B’s network, the PBX

routes it to the executive’s extension. The executive has a

simple call forwarding rule to redirect all calls to the mo-

bile phone (on provider A’s network). This will probably be

at zero cost and is transparent to the caller.

The GS8 modular gateway can operate in this mode

completely stand alone, without any IP connection. It can

be programmed to route any call received on any one of

its ports to any other port. As the next example shows, it

can operate this way in a cluster so this application can be

extended to ﬁve or more mobile phone service provid-

ers. The scheme shown in ﬁgure 5 has the advantage that

when the executive is in the ofﬁce he or she can stop the

call forwarding and receive all calls on his or her desk

phone.

Application: Clustering of GS8 Modular Gate-

ways without an IP PBX

Figure 6 shows how multiple GS8 modular gateways can

be connected together to create a virtual GS8 modular

gateway with increased capacity. A SIP call can be routed

from one GS8 modular gateway to another GS8 modu-

lar gateway. The receiving GS8 modular gateway simply

accepts the call and routes it based on the programmed

routing strategy.

In this example an incoming call from the traditional PBX

can go out to the GSM or CDMA network from any free

GSM or CDMA port, and this GSM or CDMA module does

not have to be in the same chassis as the analog module.

It is theoretically possible to extend this cluster of GS8

modular gateways without the limitation of location and

number of nodes.

Application: Service Business using SMS

This shows how a business can improve customer sat-

isfaction by sending (and receiving) SMS text messages

to customers. Figure 7 shows a company that has a data

base with details about the service provided to the cus-

tomer and a small piece of middleware software that in-

terfaces to the data base and communicates with the GS8

modular gateway either directly or through the IP PBX.

On a changing customer situation in the data base, the

middleware can cause an SMS to be sent to the customer.

It can receive a response from the customer and cause

another action in the data base. This will all happen with-

out anyone needing to initiate the transaction or gather

any response.

One example might be a car repair garage. After a

customer’s car has been repaired or serviced, the data

base is updated with the details of the service. The system

can send an SMS to the customer to inform him or her

that the car is ready and the total bill.

Another example might be a dental or optician ofﬁce that

schedules regular appointments with clients every six

months or so. Usually, the practitioner will call the client

prior to the appointment to ensure he or she has not

forgotten and will conﬁrm the appointment. Instead, the

middleware is programmed to send a reminder by SMS

a few days in advance and request that the client ac-

knowledge attendance by replying “yes” or “no.” A further

reminder can be sent 12 hours before the appointment if

required.

A third application is where a restaurant accepts res-

ervations for booking a table. When the reservation is

accepted the caller’s mobile number is entered into the

data base. The system sends an SMS to the caller with

the address of the restaurant and a conﬁrmation of the

booking date and time. If the booking was made long

in advance, the system can request conﬁrmation of the

appointment with an additional text message a few hours

before the meal.

Each of these examples is less intrusive to the client,

requires no intervention in the business, and improves

customer satisfaction.

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