ZyXEL Communications ISDN Terminal Adapter Omni.Net Lite Bedienungsanleitung PDF herunterladen (Seite 8)

R interface If you want to connect standard analogue telephone devices (phones, fax or

answering machines, analogue modems) to your ISDN line, you must select hardware

with an R interface, often labelled "Telset" or "POTS".

In fact an analogue modem dialing out over an R interface should achieve better

throughput than when dialing over an ordinary telephone line, and this is true for a

number of the hardware devices shown in the table.

However several vendors’ products work fine with a 28.8 kbps analogue modem but

fail to dial or to connect when driven by a 56 kbps analogue modem. So be sure to test

your actual device before paying, if this function is important to you.

Backup power If continuity of service is important, support your NT-1, Terminal

Adapter, and perhaps computer, with an Uninterruptible Power Supply (UPS), or select

a Terminal Adapter with included battery backup.

Status display Models vary widely here, from none, to LEDs, to LCD. Also some

models provide incoming Caller ID in an LCD, and some even pass it through to a

Caller-ID-equipped analogue telephone instrument. Read the fine print of the specifica-

tion if this is important to you.

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ZyXEL Communications ISDN Terminal Adapter Omni.Net Lite Bedienungsanleitung Seite 8