Glossary

Glossary

A

Access code

Can be set in the base station as the access code for all outgoing calls. This is necessary, for example, on a PABX that expects 0 or 1 for opening an outside line.

ACN International (trunk prefix)

Can be preset in the base station as the access code for all calls abroad (international) or other local networks (national).

Answering machine (AM)

An answering machine accepts calls and records voice messages. There are various designs of answering machine: base stations can be equipped with an internal answering machine function. Analogue answering machines may be connected to a base sta- tion. Some network provider offer an answering machine function on the public telephone network.

Authorisation

Internal devices can be blocked in the base station for certain types of connection. From certain devices, e. g. devices only approved for internal calls, no connections can be made with external phone numbers. Calling an emergency number is always possible.

B

B-channel

Use channel of an ISDN line with a transmission speed of 64 kbit/s. There are normally two B-channels on an ISDN line. This allows two calls to be made via the public telephone network at the same time. For dial-up connections, both B-channels can be bundled to increase the transmission speed.

Block dialling

You first of all enter the complete number and then correct it as necessary. Then lift the receiver or press the call key to dial the number.

Bluetooth

New technology for wireless transmission of data. Bluetooth permits wireless transmission of voice and multi-media data over a range of a few meters. The range of the connection depending on the technical features of the connected device. Unlike with infrared transmission, Bluetooth devices do not need to be in line of sight.

C

Callback when the call is not answered

If a user does not respond when called, a caller can arrange an automatic callback. As soon as the destination phone has completed a call and is free again the caller is rung back. This service must be supported by the exchange. The callback request is automatically cancelled after about 2 hours (depending on the network provider).

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