What Is a VoIP Gateway & How Does It Work ?

A VoIP gateway is a hardware device that converts telephony traffic into packets of data for transmission over the internet, bridging the analog, cellular, and IP network. Depending on where the voice signal originates from, the gateway will convert the voice signal into the proper form for receipt by the destination network.

PSTN

If the voice signal originates from the PSTN, a VoIP gateway can convert the analog signal into packets of data and sends it to the IP-based phone system, and vice versa.

DIGITAL LANDLINES

If the voice signal originates from digital landlines, a VoIP gateway can also convert the digital signal into packets of data and allows the two networks to communicate.

CELLULAR NETWORK

GSM gateways convert GSM/3G/4G cellular connection to SIP and provide it as a trunk to an IP PBX system and the other way around.

Types of VoIP Gateway

  • Cutting-edge product that connects legacy phones, fax machines, and phone systems with IP telephony networks and IP-based phone systems.

  • Connect analog telephone lines or PABX extension interface to IP networks. A cost-effective and reliable solution for office-to-office voice connectivity.

  • Connect GSM/3G/4G to IP network directly and support two-way communication: GSM/3G/4G to VoIP and VoIP to GSM/3G/4G.

  • Bridge the gap between ISDN telephony connections such as common RJ-48c / T1 interfaces to provide dial tone to most VoIP phone systems.

Use Cases

  • Analog Extensions for IP-based Systems

    By connecting legacy phones and fax machines directly to the FXS ports of TA Series Gateways, or TA Series Analog Telephony Adapters, legacy devices are able to work as extensions of the IP-PBX. For hotels that wish to use their existing analog hotel phones along with an IP phone system, TA FXS Gateway would be an affordable and trouble-free solution.

  • PSTN/PRI/BRI Lines for IP-PBX

    Yeastar VoIP Gateways provide easy and trustworthy conjunction of IP-based systems and legacy ones. It is suitable when the local IP telephony network is constructed gradually when there already has a legacy PSTN, ISDN, or cellular network. Any SIP-based infrastructure, including IP-PBX, hosted PBX, VoIP contact center could benefit from this conjunction.

  • Connect Legacy Equipment to VoIP

    Yeastar TA FXO, TE, and TB Gateways can connect legacy PABX or digital PBX to SIP trunks, enabling making calls over the Internet. Service providers who are sunsetting landline services can introduce a straightforward migration path by bundling SIP trunking and VoIP gateways for customers, thus providing an all-IP solution and value-added services.

  • Backup Trunks for IP-PBX

    In the event of internet failure or a network crash and SIP trunking to an IP-PBX goes down, Yeastar TA FXO Gateway supports PSTN failover or fallback by connecting your PBX to an outside telephone line. TG GSM VoIP Gateway can also provide backup GSM trunks for enterprises as a backup, enabling your workforce to carry on their business as usual.

  • VoIP Solution to ISDN Switch Off

    As large telecom companies successively announce to switch off digital landlines, it’s time for businesses to consider moving from traditional systems to IP-based ones. Bridging legacy landlines and SIP communication systems, Yeastar VoIP Gateways provides a reliable solution to ensure a successful migration to VoIP at your own pace.