S100 is a cost-effective business communication system with a base configuration of 100 users and 30 concurrent calls and can scale up to 200 users and 60 concurrent calls.

Yeastar S300 delivers enterprise-class IP telephony services with a base configuration that supports 300 users and is expandable to 500 users.

Yeastar S20 is a stand-alone telephone system offering an unrivalled range of features to small business with less than 20 users. It supports 10 concurrent calls and various combinations of telephony ports including FXS, PSTN, ISDN BRI, and GSM/3G. This guide describes how to install the S20 and how to log in the web GUI to configure the system. Once you complete the installation, refer to the Yeastar S-Series Administrator Guide for instructions on how to perform configurations on the system.

S412 is a flexible and modular VoIP PBX that provides productivity-enhancing communication platform with a compact and powerful analog and VoIP capable system for small business.

Yeastar S50 is a stand-alone telephone system offering an unrivalled range of features to small business with less than 50 users. It supports 25 concurrent calls and various combinations of telephony ports including FXS, PSTN, ISDN BRI, and GSM/3G. This guide describes how to install the S50 and how to log in the web GUI to configure the system. Once you complete the installation, refer to the Yeastar S-Series Administrator Guide for instructions on how to perform configurations on the system.

1 FXS Port & 1 FXO Port Unique PSTN Fallback Function

1 WCDMA Channel 1 Channel for WCDMA Voice Calls Frequency: 900/2100 MHz, 850/2100 MHz, 850/1900 MHz

3G/4G Voice Call & Data Insert 4G module on Slot_1 of S20&S50 and Slot_1 of EXP 1 of S100&S300.Learn more.

2 BRI Ports 2 x NT/TE BRI Ports

Add 100 VoIP Users & 30 Concurrent Calls Supported Model: S100 and S300

EX08 has 4 onboard module slots and 8 interfaces on the panel. Supported Model: S100 and S300

EX30 has 1 onboard E1/T1/PRI port. Supported Model: S100 and S300

1 Channel for GSM Voice Calls Frequency: 850/900/1800/1900 MHz (quad-band)

2 FXO Ports Connect 2 analog PSTN (POTS) lines.

2 FXS Ports Add 2 analog telephones.

Constructing a high-end and interoperable communications network with your analog devices is easier than ever. The GXW4104/4108 is ideal for small to medium business that are looking to integrate existing PSTN lines with an IP PBX system or with an existing traditional phone system.

Constructing a high-end and interoperable communications network with your analog devices is easier than ever. The GXW4104/4108 is ideal for small to medium business that are looking to integrate existing PSTN lines with an IP PBX system or with an existing traditional phone system.

The GXW4200 high-density FXS gateway series enables businesses of all sizes to create an easy-to-deploy VoIP solution that takes advantage of Gigabit speeds. These FXS gateways offer the ability to seamlessly connect multiple locations and all devices within an office to any hosted or on premise IP PBX network to make deployments as easy as possible.

The GXW4200 high-density FXS gateway series enables businesses of all sizes to create an easy-to-deploy VoIP solution that takes advantage of Gigabit speeds. These FXS gateways offer the ability to seamlessly connect multiple locations and all devices within an office to any hosted or on premise IP PBX network to make deployments as easy as possible.

The GXW4200 high-density FXS gateway series enables businesses of all sizes to create an easy-to-deploy VoIP solution that takes advantage of Gigabit speeds. These FXS gateways offer the ability to seamlessly connect multiple locations and all devices within an office to any hosted or on premise IP PBX network to make deployments as easy as possible.

The GXW4200 high-density FXS gateway series enables businesses of all sizes to create an easy-to-deploy VoIP solution that takes advantage of Gigabit speeds. These FXS gateways offer the ability to seamlessly connect multiple locations and all devices within an office to any hosted or on premise IP PBX network to make deployments as easy as possible.

The UCM6200 series IP PBX appliance is designed to bring enterprise-grade voice, video, data, and mobility features to small-to-medium businesses (SMBs) in an easy-to-manage fashion.

The UCM6200 series IP PBX appliance is designed to bring enterprise-grade voice, video, data, and mobility features to small-to-medium businesses (SMBs) in an easy-to-manage fashion.

Grandstream's UCM6200 Series IP PBX appliances are a powerful tool that can support up to 800 users and 50 SIP accounts. The Grandstream UCM6208 IP PBX supports up to 100 concurrent SIP calls and up to 50 WebRTC calls.