Cisco VG224 24-Port Analog VoIP Phone Gateway

The Cisco VG224 is a 24-port analog VoIP gateway providing SIP and SCCP signaling connectivity for legacy analog phones, fax machines, and modems in Cisco Unified Communications environments. Enabling analog device integration into IP telephony infrastructure without replacing existing analog endpoints, it is an essential migration tool for enterprises transitioning from legacy PBX to Cisco UCM or Webex Calling.

Key Features

• 24 FXS ports for connecting analog phones, fax machines, and modems to VoIP networks
• SIP and SCCP signaling for Cisco UCM and third-party SIP platform compatibility
• Rackmount 1U form factor for data center or wiring closet installation
• Preserves investment in existing analog endpoints during IP telephony migration
• Cisco IOS management for consistent enterprise network administration

Product Specifications

• Part Number: VG224
• Manufacturer: Cisco
• Model: VG224
• Ports: 24x FXS analog ports
• Signaling: SIP, SCCP
• Form Factor: 1U Rack-mountable

Interface Specifications

• FXS Ports: 24x RJ-11 analog ports
• Network: 2x 10/100 Ethernet (LAN + WAN)
• Signaling: SIP and SCCP
• Management: Cisco IOS CLI and web interface

Communication Specifications

• Codecs: G.711, G.722, G.729a/b
• Fax: T.38 fax relay and G.711 pass-through
• Analog Compliance: FXS loop-start signaling
• Call Capacity: Up to 24 simultaneous calls

Use Cases

• Legacy analog phone and fax integration into Cisco UCM IP telephony environments
• PBX-to-VoIP migration preserving existing analog endpoints
• Conference room and common area analog phone connectivity in Cisco UC deployments
• Fax machine T.38 fax relay over IP in enterprise VoIP networks

Compatibility

• Cisco Unified Communications Manager (UCM) via SCCP
• SIP-compatible platforms via SIP signaling
• Standard RJ-11 analog phones, fax machines, and modems
• Managed via Cisco IOS CLI and web interface

Frequently Asked Questions

What is the difference between FXS and FXO ports?

FXS (Foreign Exchange Station) ports connect to analog endpoints like phones and fax machines — the VG224's 24 FXS ports power and signal analog devices just like a PBX station port.

Does the VG224 support T.38 fax?

Yes — the VG224 supports T.38 fax relay for reliable fax transmission over IP networks, and G.711 pass-through as an alternative for fax environments where T.38 is not supported end-to-end.

Is the VG224 compatible with Webex Calling?

The VG224 was designed for Cisco UCM SCCP and SIP environments. Webex Calling analog gateway support varies — verify current Cisco documentation for Webex Calling analog gateway compatibility.

The Cisco VG224 delivers 24-port analog FXS VoIP gateway connectivity for Cisco UCM and SIP environments — enabling seamless legacy analog phone and fax integration during IP telephony migration. Order today for fast shipping.