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Overview
PLANET continues to bring innovation to the Voice over IP communications market with cutting edge
products and Internet telephony manufacturing experience. For a cost-effective and high performance
VoIP communications today, PLANET introduces the desktop SIP IP Phone, VIP-251T, to fulfill the VoIP
deployment needs from ITSP, enterprises to home.
The VIP-251T features high-quality speakerphone technology and provide various voice services
including speaker on / off, call hold and call transfer with user-friendly speed dial button design. it also
has additional features such as built-in DHCP clients, password-protected machine management, LCD
menu display, speed-dial keys, last number redial, incoming message indicator and user-intuitive web
administration system.
The VIP-251T brings the benefits of VoIP technologies to your daily life. It is the SIP IP phone featuring
self-contained, service-integrated, intelligent phone functions, and powerful voice processing. The
VIP-251T can effortlessly deliver toll voice quality equivalent to the regular SIP protocol connections by
utilizing cutting-edge Quality of Service, echo cancellation, comfort noise generation (CNG) and voice
compensation technology. Meanwhile, the dual Ethernet interfaces on the IP Phone allow users to
install it in an existing network without interfering with desktop PC network connections. The VIP-251T
is an ideal solution for office / home use as well as for Internet Telephony Service Provider (ITSP).
Product Features
•
SIP 2.0 (RFC3261) compliant
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G.711A, G.711U and G.729 voice codec
•
Supports STUN, Outbound Proxy
•
Supports up to 2 Proxy server registrations
•
3-Way Conference / Caller ID
•
Built-in phone book
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Call Hold / Waiting / Transfer / Forward
•
VAD / CNG / AEC / PLC / AJB /AGC
•
Incoming / Outgoing / Miss Call record
•
QoS / NAT / DHCP Server
•
Auto-Provisioning / TR-069
•
Web / Keypad management
Chapter 1
Introduction
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