Prestige 2602HW Series User’s Guide

Multiple SIP Accounts

The Prestige allows you to simultaneously use multiple voice (SIP) accounts and assign them to one or both telephone ports.

Multiple Voice Channels

The Prestige can simultaneously handle multiple voice channels (telephone calls). Additionally you can answer an incoming phone call on a VoIP account, even while someone else is using the account for a phone call.

Voice Coding

The Prestige can use the following voice codecs (coder/decoders).

•G.711

•G.729

Voice Activity Detection/Silence Suppression

Voice Activity Detection (VAD) reduces the bandwidth that a call uses by not transmitting “silent packets” when you are not speaking.

Comfort Noise Generation

When the Prestige uses VAD, it generates and sends comfort (background) noise when you are not speaking.

Echo Cancellation

The Prestige supports G.168, an ITU-T standard for eliminating the echo caused by the sound of your voice reverberating in the telephone receiver while you talk.

QoS (Quality of Service)

Quality of Service (QoS) mechanisms help to provide better service on a per-flow basis. The Prestige supports Type of Service (ToS) and Differentiated Services (DiffServ). This allows the Prestige to tag voice frames so they can be prioritized over the network.

SIP ALG

The Prestige 2602HW is a SIP Application Layer Gateway (ALG). It allows VoIP calls to pass through NAT.

Auto-provisioning

Auto-provisioning automatically updates your Prestige’s configurable settings via a TFTP server.

Chapter 1 Getting To Know Your Prestige

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