IPitomy IP400 User Guide - Manual (Page 5)

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Chapter 1
Introduction
This Chapter provides an overview of the VoIP Gateway features and ca-
pabilities.
Congratulations on the purchase of your new VoIP Gateway. The VoIP Gateway bridges
traditional Public Switched Telephony Network (PSTN) and IP network. It digitizes and
compresses analog voice signal on Public Switched Telephone Network (PSTN), and
transmits it to the Internet Protocol (IP) network. The VoIP Gateway is equipped with one
RJ-45 port for connecting to IP-based network and four Plain Old Telephone Service
(POTS) ports with Foreign Exchange Office (FXO) interface for connecting to PBX or
Central Office (CO) lines.
VoIP Gateway Features
The VoIP Gateway incorporates many advanced features, carefully designed to provide
sophisticated functions while being easy to use.
Internet Access Feature
• Fixed or Dynamic IP Address support
NAT Traversal Feature
• STUN and UPnP control point protocol for NAT traversal
VoIP Features
• Session Initiation Protocol (SIP) support
• Provides PSTN users access to IP telephony networks
• IP connectivity for traditional PBX and Key Systems
• G.711, G.726 and G.729AB voice codecs support
• Voice activity detection and comfort noise generation
• Packet lost concealment
• Dynamic Jitter Buffer
• Echo cancellation, G.168 32 ms echo tail
• DTMF tone detection and generation
• RFC2833 in-band DTMF relay
• Call progress tone detection
• Caller ID detection
• Hunt grouping of FXO ports
• Built-in dial plan
• Web Based UI for network and image control
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