What’s VoIP gateway
VoIP gateway is used to build bridges between traditional telephony and VoIP world. Gateways are often used to connect a traditional phone system (PBX or ACD) and VoIP resources, or connect modern VoIP phone system with traditional telephone lines.
In traditional PBX phone systems add VoIP network system is to add functionality, reduce cost of doing business one way to success. Gateway to connect to legacy systems via analog or digital trunk port. PBX telephone system will be regarded as the gateway company or another networked PBX system. Outgoing calls from the PBX to the outside world will be converted into a VoIP phone, and sent to the VoIP service provider or other VoIP calls through the network. VoIP calls placed from the telephone network will also be converted into the corresponding protocol and transferred to traditional PBX systems.
In SIP trunk is unavailable or PSTN system reliability applications is not strong, you can use the gateway to connect to the VoIP telephone system and a traditional telephone line. Use this gateway can also easily create redundant systems. Gateways usually associated with major IP PBX. When the main IP PBX fails, the backup system may also be a gateway for data transmission.
Other features also include VoIP gateways segmented transfer. Gateway can be connected to PSTN systems, the traditional PBX systems and new IP PBX system. In this case, PSTN trunk interface to connect to a gateway device. Another interface connected to a conventional PBX system trunk port. The new IP PBX systems are integrated via VoIP protocols (typically SIP). The gateway to some of the incoming calls to the traditional PBX systems or other IP PBX systems. It also enables call transfer between two PBX systems. This makes the case that people have turned to IP systems, some departments or branches of the company to retain the existing system.