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IP Office Product Description

IP Office 4.2

Page 33

Issue 18.b.- (08 July 2008)

Expansion Modules

Through support of up to twelve external Expansion Modules, IP412 can be enhanced to support a mixture of

analog, digital or IP phones, to maximum of 360 phones in any combination.

If additional analog trunks are required, these can be aggregated in groups of 16 on each analog expansion

module.

Data Channels

A Data Channel is used for Remote Access (RAS), Internet Access, and Voicemail sessions. A data channel is

an internal signaling resource used whenever a call is made from the IP network to an exchange line (Central

Office). For example, four people surfing the Internet will use a single data channel since they all share the

same line to the ISP. Two people remotely accessing the Office LAN from home will use two data channels

since they have dialed in on separate lines. IP extensions do not use data channels. Data channels are used for

voicemail connections with a maximum of 30 available for VoiceMail Pro on a IP412.

Modems and Voice Compression modules

You can add additional hardware to the IP412 system to add one modem card (12 V.90 modems) and 2 Voice

Compression Modules (VCM). Each VCM supports from 4 to 30 simultaneous Voice over IP sessions and is used

for either providing networking between sites over a Wide Area Network or supporting IP Telephones and Soft

phones.

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Reliant Octel 300 Spezifikationen Seite 33