Grandstream GXW4216V2 is a high-density, cost-effective VoIP gateway designed to bridge legacy analog telephones and PBX systems with modern IP PBX or hosted SIP networks. Featuring 16 FXS analog telephone ports, this device supports seamless office communication with Gigabit Ethernet connectivity ensuring high-speed network performance.

Built for versatile deployment, the GXW4216V2 supports 4 SIP server profiles per system, allowing independent SIP accounts per port. Its backlit graphic display with multi-language support facilitates easy configuration and monitoring. The device ensures superior audio quality with wide-band audio support up to 16 kHz sampling and advanced codecs such as Opus and G.722.

Security is paramount; the gateway incorporates carrier-grade protections including secure boot, unique certificates, randomized default passwords, dual firmware images, and encryption protocols such as TLS, SRTP, and HTTPS for secure calls and provisioning. Additional features include simultaneous 3-way voice conferencing per port and T.38/pass-through fax support, making it an ideal solution for businesses migrating to IP telephony without replacing existing phone infrastructure.

Key attributes:

• 16 FXS ports for connecting analog phones and fax machines


• Gigabit Ethernet for high-speed network connectivity


• Backlit 128x32 graphic display supporting multiple languages


• 4 SIP server profiles with independent SIP accounts per port for flexible multi-tenant use


• Wide-band audio codecs (Opus, G.722) for enhanced voice clarity


• Advanced security with secure boot, unique device certificates, and encrypted signaling


• Supports 3-way conferencing and T.38/pass-through fax