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Arris Touchstone TM508

details: DOCSIS 2.0 Multi-Line Telephony Modem
hardware type: VoIP Gateway
date added: 2011-01-25
updated: 2015-10-08
Designed to support small businesses and multiple dwelling unit (MDU) applications, these products combine 8 subscriber line interfaces with one 10/100BaseT Ethernet port and a
high performance DOCSIS 2.0 cable modem in a rack or wall mountable chassis.

Each line interface provides a 48Vdc nominal battery feed with 5 REN per line ringing capacity. Configuration options for loop current, loop voltage management, and ringing waveform are available for each line interface.

Enhanced telephony features include auto-adapting FSK/CAS tone levels, dynamic jitter
buffers, and G.168 compliant echo cancellation. Advanced signal processing methods
provide RFC 2833 compliant DTMF relay, T.38 Fax transmission, three-way calling, call
waiting, and caller ID.
 Touchstone TM508 Features
 Availability: discontinued
 LAN / WAN Connectivity
 WAN ports: 1
 WAN port(s) type: Coax F-connector
 LAN ports: 1
 LAN ports type: 10/100 Base-TX (RJ-45)
 LAN ports auto cross-over: yes
 RJ-11 FXS VoIP phone ports: 8
 Routing Protocols: RIP v2 (dynamic routing, RFC1389)
 Cable Modem
 DOCSIS compliance: DOCSIS 1.0
 PacketCable: PacketCable 1.0/1.1 (VoIP)
PacketCable 1.5 (VoIP)
 VoIP Protocols: SIP v2 (RFC 3261)
T.38 (Fax over IP)
 VoIP Voice Features: Echo Cancellation (G.165/G.168)
Adaptive Jitter Buffer
3-way conferencing
Caller ID
Call waiting
 Device Management
 Administration: Web-based (LAN)
Remote configuration (WAN)
Telnet / CLI
 Firmware upgradeable: yes
 Misc hardware info
 SNMP support: SNMP v.2
 Product page:
 Quick Install Guide:

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