A VoIP gateway is used to construct a bridge in between the worlds of legacy telephone systems and the VoIP. Gateways are typically utilized to connect legacy phone systems (PBXs or ACDs) with VoIP resources, or to connect modern VoIP phone systems with legacy phone lines.

Adding VoIP to a tradition PBX system is an excellent way to include features and minimize expenses. The gateway connects to the legacy system through either analog or digital trunk ports. The PBX sees the entrance as either the telephone company or as another networked PBX. Calls from the PBX to the outside world are converted into VoIP calls and sent out online to a VoIP service company or other VoIP peers. Calls coming from VoIP sources are converted into the suitable tradition procedure and delivered to the PBX.

Using an entrance to link a VoIP phone system to traditional phone lines makes good sense in circumstances where SIP trunks are not offered or where your application requires the reliability of the PSTN. It also makes it easy to build redundant systems. The gateway usually interacts with a main IP PBX. In case of a failure on the main, the entrance can communicate with a backup system.

Other uses for VoIP gateways include staged migrations, where the entrance serves as a bridge in between the PSTN, a tradition PBX and a new IP PBX. In this case, the PSTN trunks are linked to one user interface on the entrance. Another user interface connects to the trunk port on the tradition PBX. The brand-new IP PBX is integrated over a VoIP protocol (generally SIP). The gateway directs some inbound calls to the tradition PBX and others to the IP PBX. It likewise passes calls in between the 2 PBXs. This allows some department or other neighborhoods of the business to remain on the tradition system while others transfer to the IP system.

Key Facts & Features

Gateways come in numerous formats. Analog entrances transform in between VoIP protocols and standard analog phone lines and/or phones. Digital gateways convert in between VoIP and numerous kinds of digital phone services: T1, E1, PRI and/or BRI, depending on the entrance.

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

The routing functions built into a gateway allow it to intelligently 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 also recognize various patterns and path them throughout various interfaces.

Gateways can be utilized to transform VoIP calls from one code to another, a procedure called transcoding. This can be helpful when bridging numerous VoIP solutions together. VoIP calls over the Internet do need a solid Internet connection. Run a VoIP network test as a basic diagnostic tool to identify the jitter, bandwidth, and latency on the Internet connection.

Key Benefits

Gateways can extend the life of tradition equipment by "VoIP making it possible for" it. This can consist of replacing standard trunk lines with SIP trunks or routing some subset of traffic over VoIP to a remote PBX or gateway - a procedure understood as toll bypass.

Gateways allow flexibility. Instead of moving from a standard PBX to an IP PBX in one step, a business can stage the migration using the entrance as a bridge between the 2 systems.