Cisco VG204XM Analog Voice Gateway –

The Cisco VG204XM is a high-performance 4-port analog voice gateway designed to integrate analog devices such as fax machines, phones, and modems into IP-based telephony systems. With support for multiple VoIP protocols, advanced security, and robust network management options, it is ideal for enterprise environments requiring reliable analog-to-IP conversion.

Key Features & Benefits
4 FXS ports for connecting analog devices to VoIP networks
Supports multiple VoIP protocols including SIP, SCCP, H.323, MGCP, and SRTP
Advanced call features such as hold, transfer, waiting, and caller ID
RADIUS and TACACS+ authentication for secure access control
Wall-mountable, compact design for flexible deployment

Ideal Uses
Integrating analog phones and fax machines into modern VoIP systems
Expanding IP telephony in branch offices or remote sites
Providing analog connectivity in hybrid PBX environments
Securing voice traffic with encrypted VoIP protocols

Specifications
Condition: device with no signs of previous use. Device has been extensively tested and is 100% functional.
Brand: Cisco
Model: VG204XM
Product Type: Analog Voice Gateway / VoIP Phone Adapter
Memory: 256MB DDR2 SDRAM, 128MB Flash
Connectivity: Wired Ethernet/Fast Ethernet
Interfaces: 4 × RJ-11 FXS, 2 × RJ-45 (100Base-TX), 1 × RJ-45 management, 1 × console port
Voice Codecs: G.711, G.729a, T.38
VoIP Protocols: H.323 v4, MGCP, RTP, SCCP, SIP, SRTP
Network Features: DHCP, DNS, RADIUS, Wall-mountable
Security: RADIUS, TACACS+ authentication
MTBF: 200,000 hours
Dimensions: 1.8" (H) × 8.8" (W) × 8.1" (D)
Weight: 1.35 kg (2.98 lbs)
Warranty: 6 Month Carry-in Warranty
What's in the Box: Cisco VG204XM Analog Voice Gateway