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What is A VoIP Gateway?

A VoIP gateway is used to build a bridge between the worlds of tradition telephony and the VoIP. Gateways are normally utilized to connect tradition phone systems (PBXs or ACDs) with VoIP resources, or to link modern VoIP phone systems with tradition phone lines.

Adding VoIP to a legacy PBX system is a terrific way to include features and lower costs. The gateway connects to the tradition system through either analog or digital trunk ports. The PBX sees the gateway as either the telephone company or as another networked PBX. Calls from the PBX to the outdoors world are transformed into VoIP calls and sent online to a VoIP provider or other VoIP peers. Calls coming from VoIP sources are transformed into the appropriate tradition protocol and provided to the PBX.

Using a gateway to connect a VoIP phone system to standard phone lines makes good sense in situations where SIP trunks are not available or where your application needs the dependability of the PSTN. It also makes it simple to construct redundant systems. The entrance generally communicates with a primary IP PBX. In the event of a failure on the main, the gateway can interact with a backup system.

Other uses for VoIP gateways include staged migrations, where the entrance functions as a bridge in between the PSTN, a legacy PBX and a new IP PBX. In this case, the PSTN trunks are connected to one user interface on the gateway. Another interface connects to the trunk port on the legacy PBX. The new IP PBX is integrated over a VoIP procedure (normally SIP). The gateway directs some incoming calls to the tradition PBX and others to the IP PBX. It also passes calls in between the 2 PBXs. This allows some department or other subdivisions of the company to remain on the legacy system while others to the IP system.

Key Facts & Features

Gateways can be found in several formats. Analog gateways convert in between VoIP procedures and conventional analog phone lines and/or phones. Digital gateways transform in between VoIP and different type of digital phone services: T1, E1, PRI and/or BRI, depending on the entrance.

Gateways can typically connect to several VoIP endpoints (gadgets or services), which permits PSTN resources to be shared between several IP communications systems.

The routing functions built into a gateway allow it to wisely adjust calls from one medium to another. For example, they can include or get rid of digits in the dial string when passing a call. They can likewise recognize various patterns and route them throughout different user interfaces.

Gateways can be used to convert VoIP calls from one code to another, a procedure known as transcoding. This can be helpful when bridging several VoIP services together. VoIP calls over the Internet do require a strong Internet connection. Run a VoIP network test as a basic diagnostic tool to recognize the jitter, bandwidth, and latency on the Internet connection.

Key Benefits

Gateways can extend the life of tradition devices by “VoIP making it possible for” it. This can consist of changing traditional trunk lines with SIP trunks or routing some subset of traffic over VoIP to a remote PBX or gateway – a procedure referred to as toll bypass.

Gateways make it possible for flexibility. Rather than moving from a conventional PBX to an IP PBX in one action, a business can stage the migration using the entrance as a bridge between the two systems.