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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.

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.

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.

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.

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Types of VoIP Gateway

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TA Series FXS VoIP Gateway

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

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TA Series FXO VoIP Gateway

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

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TG Series VoIP GSM Gateway

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

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TE Series E1/T1/PRI VoIP Gateway

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

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TB Series VoIP BRI Gateway

Offer 2 or 4 BRI ports to integrate ISDN BRI lines into VoIP systems or enable IP PBX to be connected to the ISDN network.

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Top Benefits of VoIP Gateways

VoIP Gateways bridge traditional telephony with modern VoIP networks, offering cost-effective and scalable communication solutions. They enable seamless integration with existing phone systems, reducing infrastructure costs while enhancing call quality and reliability.

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Easy to Use and Manage

Designed as a modern device, Yeastar VoIP Gateways come with a user-friendly web interface, intuitive operations, and simple installation that saves you loads of time. Yeastar TA Series VoIP Gateways also support auto-provisioning with Yeastar IP-PBX, minimizing configuration hassles for IT admin.

Designed as a modern device, Yeastar VoIP Gateways come with a user-friendly web interface, intuitive operations, and simple installation that saves you loads of time. Yeastar TA Series VoIP Gateways also support auto-provisioning with Yeastar IP-PBX, minimizing configuration hassles for IT admin.

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Reduced Communications Costs

Besides preserving current investments in the legacy equipment, by using VoIP gateways, you can enjoy free internal calls and leverage flexible call routing over the Internet to maximize limited budgets and reduce telephony charges and operational costs.

Besides preserving current investments in the legacy equipment, by using VoIP gateways, you can enjoy free internal calls and leverage flexible call routing over the Internet to maximize limited budgets and reduce telephony charges and operational costs.

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Preserving Your Existing Equipment

Instead of a complete replacement of the current infrastructure, VoIP gateways allow you to maintain them during the migration to VoIP. You can enjoy the benefits of VoIP without completely phasing out the traditional system once at a time.

Instead of a complete replacement of the current infrastructure, VoIP gateways allow you to maintain them during the migration to VoIP. You can enjoy the benefits of VoIP without completely phasing out the traditional system once at a time.

VoIP Gateway Features at A Glance

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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.

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.

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.

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    Frequently Asked Questions
    about VoIP Gateways

    What Is the Difference Between FXS and FXO Gateways?

    FXS gateways are used to connect traditional analog phones and fax machines to a VoIP phone system. FXO gateways expand FXO ports of IP PBX to connect more PSTN lines, making and receiving calls through PSTN channels, even when power is lost or the internet connectivity is down.

    What Protocol and Codec Does VoIP Gateway Support?

    All VoIP gateways support SIP protocol. Most VoIP gateways support standard codecs such as G.711, G.722, G.726, and G.729A.

    Do Yeastar VoIP Gateways support T.38 fax?

    The TA Series FXS VoIP Gateway, Analog Telephone Adapter, TE Series E1/T1/PRI VoIP Gateway, and TB Series VoIP BRI VoIP Gateway support T.38 Fax, which allows fax transmission over the IP network. TA Series FXO VoIP Gateway does not support T.38 Fax.

    Can I Connect VoIP Gateways to Wireless Network?

    Yes, Yeastar TG VoIP GSM Gateway supports communications between 2G/3G/4G and VoIP.

    Can I Use VoIP Gateways with Cloud PBX?

    Yes, for cloud PBX, connectivity with PSTN, E1/T1/PRI, ISDN BRI, and GSM/3G/4G are supported through VoIP gateways.