VoIP Gateways

VoIP Gateways

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.


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.

Analog Extensions

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.


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

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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