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Netgear CVD31T

details: VoIP DOCSIS 3.0 Gateway
hardware type: Cable Gateway
date added: 2011-12-17
updated: 2015-09-21
The CVD31T is a cable modem with 2 PacketCable voice lines. It bonds four channels in each direction together to deliver usable downstream data rates of 152 Mbps with 108 Mbps upstream.

The CVD31T is fully compliant with DOCSIS 3.0 and is backwards compatible with DOCSIS 2.0, 1.1 and 1.0. It incorporates QoS for high real time VoIP and Video performance.

The modem delivers customer data through one 10/100/1000 Ethernet LAN port and one USB 2.0 Client port. The CVD31T is fully compliant with DOCSIS 3.0 for remote management and provisioning. Post-installation, it is easily managed with SNMP.
 CVD31T Features
 Availability: discontinued
 LAN / WAN Connectivity
 WAN throughput: 152 Mbps
 WAN throughput upstream: 108 Mbps
 WAN ports: 1
 WAN port(s) type: Coax F-connector
 LAN ports: 1
 LAN ports type: Gigabit Ethernet (RJ-45)
 LAN ports auto cross-over: yes
 USB port(s): 1
for client PCs
 USB port type: USB 2.0
 RJ-11 FXS VoIP phone ports: 2
 NAT routing: yes
 Multihomed: yes
 Port forwarding: yes
 Port triggering: yes
 DHCP server: yes
 DHCP client: yes
 DNS proxy: yes
 UPnP: yes
 Routing Protocols: RIP v1 (static routing, RFC 1058)
RIP v2 (dynamic routing, RFC1389)
 Cable Modem
 DOCSIS compliance: DOCSIS 1.0
 VoIP Protocols: T.38 (Fax over IP)
 VoIP Audio Codecs: G.711 (PCM)
G.729 (a/b)
 VoIP Voice Features: Echo Cancellation (G.165/G.168)
Adaptive Jitter Buffer
3-way conferencing
Caller ID
Call transfer
Call forward
Voice Activity Detection (VAD)
 IPSec passthrough: yes
 PPTP passthrough: yes
 Device Management
 Default IP address:
 Default admin username: admin
 Default admin password: password
 Administration: Web-based (LAN)
Remote configuration (WAN)
Quick Setup Wizard
Telnet / CLI
TFTP (RFC 1350)
 Firmware upgradeable: yes
 Configuration backup/restore: yes
 Event log: yes
 Misc hardware info
 SNMP support: SNMP v.2
 NTP client: yes
 Product page:

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