1 About MobiLink GSM
MobiLink GSMi is the smallest member of the analog range of Topex mobile gateways.
MobiLink is a voice and data interface between the subscribers of a PBX exchange and the mobile
network of 2G/3G, which can be GSM/GPRS/UMTS. MobiLink GSMi assures the wireless connection
for voice and data and decreases the cost of fixed–to-mobile and mobile–to-fixed calls, while
allowing you to send or receive SMS messages from your computer.
MobiLink GSMi achieves a direct contact between a trunk of a PBX or local phone over
GSM/GPRS/UMTS (W-CDMA) mobile network. Using the automated routing program of the PBX, any
call generated from a fixed phone subscribed to the PBX exchange will be analyzed for optimal
routing. If it is for a mobile network, it will be routed to go out through the trunk on which
MobiLink GSMi was installed via its FXS interface. Thus the call intended for a mobile network will
reach the mobile module of MobiLink, to achieve minimum costs. If it is for the fixed telephony
network, it will be routed instead to the PSTN, via the FxO interface of MobiLink. This way the
fixed-to-mobile calls are converted into mobile-to-mobile calls. Thus you will pay only the mobile-
to-mobile cost. Moreover, if you have several MobiLink devices connected to your PBX, you can
assign one for each of mobile carriers, so all incoming calls will be terminated as mobile-to-mobile
calls inside the same network.
Also, for any call made from a mobile phone in the field to the number assigned to SIM card that is
used by a MobiLink GSMi connected to a PBX exchange, you can call any local subscriber extension
This will be again charged only as a mobile – to – mobile call.
The routing must be performed by the phone exchange. But you can use it also at home or in a
small office, where there is no PBX available. In this case, your fixed phone will be connected
directly to the FXS interface of MobiLink.
Of course, when MobiLink GSMi equipment is wired to a junction interface (trunk) of the PBX
exchange, the flexibility is higher.
MobiLink GSMi is also suited for using as WLL or FCT interface, this means the wireless a voice /
data connection for one fixed telephone station belongings to your household, an office or a
factory. The connection is performed over a mobile voice and data network, avoiding the
necessity of installing cables of phone lines at remote or temporary locations, and thus saving
both time and money.
Finally, by using MobiLink GSMi you have, also a mobile data interface for your needs. You can
connect a computer to USB port of MobiLink , for internet access over GSM/GPRS/UMTS
networks.
The same computer connected via USB can be used to manage the equipment, to retrieve the
logs, to send and receive SMS and to perform maintenance, debug, and firmware update.
