The Grandstream GXW4216 is a 16-port FXS Analog Gateway to VoIP that is compliant with SIP standards and interoperable with a number of VoIP systems and most analog PBXs and phones. With 16 FXS ports, high voice quality, rich telephony features and easy provisioning, along with flexible dialing plans and security protection, the GXW4216 offers strong performance even when handling high volumes of voice calls.

The GXW4216 gives small and medium-sized businesses a more cost-effective way to implement a hybrid IP and analog phone system. This delivers both benefits of VoIP telephony while also preserving an organizations existing investment in legacy equipment including analog phones, fax machines and PBX systems.