Background: 

Cloud IP PBX provide a flexible, cost-effective high extensibility telephony communication service for enterprises and organizations of all sizes. However, if an enterprise's network encounters problems, such as disconnection, bandwidth limitation or network failure, it will affect the quality and reliability of enterprise communication. In order to ensure the smooth running of enterprises' business, the importance of stable network communications is self-evident, . In addition, for small and medium-sized enterprises (SMEs), an efficient and convenient communication solution will be the key to solving the problems such as difficulties in setting up their networks and a lack of technical staff.

Solution Description：

The solution uses the FWR7302 as the network access point in the office. In addition to the conventional wired access through the WAN port, it also supports 4G SIM card to utilize cellular data for Internet access. In case of wired network failure, it can still use 4G signal for network communication. The phone can be connected to the network through Wi-Fi or Ethernet, avoiding the tediousness of wiring. At the same time, the FTA5120 SAS gateway can provide redundancy protection for the internal communication of the enterprise, so that normal calls can still be maintained after the PBX is disconnected. Meanwhile, as a dual FXO ports voice gateway, the FTA5120 can also directly connect to the FWR7302 to make VoLTE calls using its SIM card, or directly access the PSTN line to the FTA5120's FXO ports, which conveniently solves the needs of the enterprise's outbound call.

Highlight of the Solution：

①Rich Access Methods: 

In addition to direct access to broadband connection, you can also insert a 4G SIM card to access the Internet via a 4G cellular network

②Dual- Protection: 

When the wired network fails, it can also access the Internet through 4G; when the cloud PBX cannot be connected, FTA5120 will take over the local voice communication to protect the enterprise communication

③Support VoLTE: 

Outbound calls can be made directly through SIM card, eliminating the tediousness of laying PSTN lines

④Wireless Access: 

IP Phone can be accessed through Wi-Fi, saving the cost of wiring, easily adapting to all kinds of office scenarios

⑤Dual FXO port design:

FTA5120 has built-in dual FXO ports, providing outbound calling and answering capabilities, increase the credibility of enterprise in their local business

⑥Supports automatic deployment:

FTA5120 can realize the automatic issuance of extension numbers, no need to manually configure, easy and simple deployment

⑦Rich usage functions:

built-in IVR, local six-party conferencing, and many other features to meet the needs of efficient office operation.