Voice Gateway Overview

📅Oct 10, 2012

Brief：A voice gateway is similar to an ordinary computer switch. Currently, voice gateways incorporate the functions of both routers and switches. The switch distributes network resources to multiple computers, while the router is used to connect telephones. It can connect telephones, fax machines, or PBX in your home or office to Internet access devices, thereby connecting the Public Switched Telephone Network (PSTN) with the IP network to enable voice calls over the Internet. No dedicated handsets are required; ordinary telephones and fax machines can be connected to the gateway for use.

A voice gateway is similar to an ordinary computer switch. Currently, voice gateways incorporate the functions of both routers and switches. The switch distributes network resources to multiple computers, while the router is used to connect telephones. It can connect telephones, fax machines, or PBX in your home or office to Internet access devices, thereby connecting the Public Switched Telephone Network (PSTN) with the IP network to enable voice calls over the Internet. No dedicated handsets are required; ordinary telephones and fax machines can be connected to the gateway for use.

A voice gateway enables point-to-point free communication, and new-generation voice gateways possess all the functions of a PBX. Voice communications can be fully integrated into the company's data network, establishing a unified voice and data network that connects offices and employees located around the world. In other words, it acts as a voice switch, converting voice signals into analog signals.

Features:

Supports T.30 and T.38 protocols for fax services over IP bearer networks, enabling continuous transmission of multiple pages with high fax clarity.
Supports practical telephony features such as calling line identification, flash (using # instead), call forwarding, hotline, and FXS port permissions.
Excellent voice quality comparable to ordinary PSTN voice. Supports standard codecs including G.711, G.729A, and G.723.1, as well as dynamic jitter buffer management, echo cancellation, packet loss compensation, Voice Activity Detection (VAD), and Comfort Noise Generation (CNG).
Supports 802.1q and 802.1p, allowing priority and VLAN tagging of voice data streams to significantly enhance service protection.
Built-in intelligent voice quality assessment expert automatically routes calls to the enterprise's original PSTN lines when network conditions degrade and VoIP voice quality deteriorates.
Simple and flexible dialing rules with excellent interoperability with existing traditional PBX telephones, fully preserving conventional telephone usage habits.
Supports control of the call ratio between VoIP and PSTN to balance the interests of VoIP operators and the enterprise's original PSTN operator.
Automatically adds IP access codes such as 17909 to long-distance calls.
Supports PPP/PPPoE and DHCP Client, with automatic redial after PPPoE disconnection.
Provides a WEB graphical configuration interface for local device configuration; operation, management, and configuration are all very simple.
Supports local or remote monitoring and diagnostics via serial port or Telnet.
Supports automatic software upgrade. Device software upgrades do not affect normal user services.

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