Product Description

The Grandstream GXW4216 Gateway is a high-density, 16-port FXS analog VoIP gateway designed to connect traditional analog telephones, fax machines and legacy PBX equipment to modern SIP-based IP telephony networks. It is suitable for businesses, hotels, hospitals, educational institutions, call centers and enterprises looking to modernize their communication infrastructure.

The Grandstream GXW4216 provides 16 FXS analog ports, allowing organizations to integrate up to 16 analog telephone devices with compatible IP-PBX systems and SIP servers. It supports 16 SIP accounts and four configurable SIP profiles, providing flexibility for business telephony deployments.

The gateway features Gigabit Ethernet connectivity and supports voice codecs such as G.711, G.722, G.723.1, G.726, G.729 and iLBC. Advanced voice-processing technologies, including echo cancellation, dynamic jitter buffering, Voice Activity Detection and Comfort Noise Generation, help maintain consistent call quality.

The GXW4216 supports T.38 Fax-over-IP, enabling compatible analog fax machines to operate over IP networks. Security features such as TLS, SRTP and HTTPS help protect voice communications and device configuration.

With its compact, rack-mountable design, graphical LCD display and automated provisioning capabilities, the Grandstream GXW4216 simplifies the deployment and management of analog telephone connections. It is an effective solution for organizations migrating from traditional analog systems to SIP-based communications while retaining existing telephone equipment.

Key Features

• 16 FXS analog telephone ports

• 16 SIP accounts

• Four configurable SIP profiles

• Up to 16 simultaneous calls

• Gigabit Ethernet connectivity

• SIP RFC 3261 support

• G.711, G.722, G.723.1, G.726, G.729 and iLBC voice codecs

• T.38 Fax-over-IP support

• G.168 echo cancellation

• Dynamic jitter buffer

• Voice Activity Detection (VAD)

• Comfort Noise Generation (CNG)

• Packet Loss Concealment (PLC)

• Three-way voice conferencing

• Flexible dial plans

• TLS and SRTP security

• HTTPS management

• HTTP, HTTPS and TFTP provisioning

• 128 × 32 graphical LCD

• Desktop and rack-mount installation

  Suitable for analog telephone and IP-PBX integration

GXW4216 pricing and buyer FAQs

Contact Optima Technologies for pricing, availability, warranty and installation requirements in India. Compare our Grandstream gateways and review the official manufacturer documentation.

What ports does this gateway provide?

The GXW4216 provides 16 FXS interfaces. Confirm hardware revision and PBX compatibility before ordering.

What should I confirm before purchase?

Check the exact SKU, firmware, accessories, delivery lead time, warranty and any configuration or support charges.