VG204XM Cisco VG204XM Analog Voice Gateway

Cisco VG204XM - Analog Voice Gateway

The Cisco VG204XM belongs to the Cisco VG Series Analog Voice Gateways, designed to integrate analog endpoints into IP-based unified communications environments. It is particularly useful for enterprises that want to preserve existing analog devices while adopting Cisco Unified Communications Manager (CUCM) or similar IP telephony platforms.

🔧 Key Specifications

• Ports: 4 FXS (Foreign Exchange Station) analog voice ports
• Network Interface: 10/100 Mbps Ethernet (RJ45)
• Protocols Supported: SIP, SCCP, MGCP (with fallback support)
• Compatibility: Cisco Unified Communications Manager, Cisco Unified CME, and Cisco Unified Border Element (CUBE)
• Form Factor: Compact, wall-mountable design
• Reliability: MGCP fallback for high availability
• Management: Cisco IOS Software with monitoring and configuration features
• Supplementary Features: Caller ID, call forwarding, call waiting, conferencing (depending on signaling type)

🧩 Ideal Use Cases

• Branch offices needing analog phone support during IP migration
• Fax machine and modem integration into IP networks
• Enterprises with budget constraints that want to retain analog devices
• Distributed topologies where analog endpoints are sparsely located

⚙️ Benefits

• Cost-effective migration: Allows gradual transition from analog to IP telephony.
• High availability: MGCP fallback ensures continued operation during WAN outages.
• Ease of management: IOS-based monitoring and configuration.
• Flexibility: Supports a wide range of analog calling features depending on call control.