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1 Overview
1.1 Introduction
Cortelco Inc. and its suppliers believe that the next generation of networks
based on VoIP technologies will significantly change the way people communicate
with each other. To get the greatest benefit from these technologies, the use of VoIP
should be simple to most users. Our mission is to make your VoIP experience just
as straightforward as using a normal telephone set.
The VOIP 2747 is a next generation IP Phone that provides a cost-saving
solution for small business/home users for their telecommunication needs. The VOIP
2747 follows the open standard SIP/H.323 protocols to make sure that the user can
easily install this IP phone on most of the existing VoIP (Voice over IP) services. By
using state-of-the-art DSP (Digital Signal Processing) technology, the VOIP 2747
delivers outstanding voice quality that is comparable to PSTN.
With the built in LCD display, the user can easily configure the VOIP 2747 for
first time installation in just a few minutes. In addition to the advanced VoIP
functions and easy installation, the VOIP 2747 also provides rich telephone features
such as last number redial, speed dial, call forward/transfer, call history, volume
adjustment and speakerphone. Cortelco’s VOIP 2747 is your best VoIP solution for
the next generation of communication.
1.2 Key Features
• H.323 version 4 standard :
o Supports Fast start, Tunneling and H.245 DTMF relay.
• RFC-3261 SIP standard :
o Supports password authentication using MD5 digest and RFC-2833 for
DTMF relay.
• Dynamic IP support (DHCP and PPPoE) :