GSM-FXO-FXS Router

Different telecom networks offer advantages in different aspects. Today's businesses expect the specific benefits from each of these networks. The Plain Old Telephone System (POTS) and GSM are two such omni-present networks. Most establishments have access to both these networks and need

to bridge and interconnect them. This allows them to dynamically select one of the networks on per-call basis for obvious benefits of cost and Quality of Service (QoS). The Matrix GSM-FXO-FXS router is one such bridge. The compact terminal can be interfaced to the existing PBX infrastructure at a nominal cost. This also obviates the need for providing separate mobile phones to members of the organization, or for subscribing to multiple mobile connections. Thus, brings about significant reduction in the capital and recurring call costs. Users can further avail of value-added features like closed user group and conference offered by the GSM service providers, thereby saving on calls to office colleagues on the field and through group calls. The solution can also be employed at constructional sites, for home usage and for temporary office set-ups.

The GSM-FXO Bridge
Matrix SIMADO GFXD1111S is a GSM-FXO-FXS bridge. It interfaces GSM and POTS networks   On the GSM side; it supports GSM Quad-Band operation, allowing it to work with any GSM network. On the POTS side both, FXS and FXO interfaces are supported. Incoming calls on GSM port can be routed on FXS or FXO port. Outgoing calls from the FXS are routed either on the GSM port or the FXO port depending on the least cost routing logic.

PBX users can avail of the low tariff of GSM networks by connecting the SIMADO GFXD1111S with the PBX without changing their existing infrastructure. The users continue to make and receive calls without worrying on which network their calls are routed. The SIMADO GFXD1111S routes the calls either on POTS or GSM network depending on the destination numbers dialed by the users.

SIMADO GFXD1111S can be connected to a traditional PBX in two ways. Firstly, its FXS port can be connected to the FXO ports of the PBX. On dialing prefix assigned in the PBX, the user can access these FXS ports to make GSM calls.

Secondly, the FXS port (SLT port) of the PBX can be connected to FXO port of the SIMADO GFXD1111S. In case an existing PBX does not have a spare trunk (CO) port, the Matrix SIMADO GFXD1111S can be connected to an extension of the PBX. The users can make GSM calls through the extension port on which the FXO port of the SIMADO GFXD1111S is connected. Even the incoming calls can be made to land on the desired extensions of the PBX.

The SIMADO GFXD1111S also supports sending and receiving fax from a PC. SMS, Internet browsing, E-mail access and file transfer are also supported. Matrix SIMADO GFXD1111S is very easy to install and operate. It can be mounted on a wall or a table surface.

This stand-alone FCT device can satisfy many other communication needs besides voice communication. The user can transmit and receive fax through SIMADO GFXD1111S. This helps in sending and receiving fax messages from a computer using fax software like WinFax, Mighty Fax, etc. For this function to work, a separate subscription is required from the GSM service provider who assigns a different number on the same SIM card.

The embedded GPRS class10 data router provides support for Internet browsing, E-mail access and file transfer. To access GPRS services, the same needs to be activated on the SIM module used within the FCT, by the service provider.

SMS received can be read on the computer or on the display of the SLT. Messages can be composed and sent through the computer only. Indication regarding new messages is available on the SLT or on the computer.

Quad-Band Support	GSM-FXO Bridge Functionality
Answer Signaling on FXS	Automatic Number Translation
Allowed and Denied Lists	Least Cost Routing (Time, Number and Mixed)
Hot Line	Signal Strength Indication
Network Selection	File Transfer and Remote Login
GPRS Class 10	G3 Fax Support
SMS Application	Internet Browsing