Operation Manual

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LANCOM Advanced VoIP Client

 Technical Terms

App. E: Technical Terms

Here you will find more detailed explanations of technical terms used in

connection to the “Voice over IP” technology.

These terms are included to help you understand the technical background,

but they are not necessarily required to operate the phone itself. We also

recommend technical “laymen” briefly read through these terms; some of

these terms are easy to understand, other explanations are aimed at those

more technically interested readers.

Term Explanation

Line ISDN line for operating a single ISDN terminal. This is usually a

telecommunications system with the option of dialing to an exten-

sion. In comparison to the multiple connection, the line has the

advantage that the number of extension numbers is not limited.

ACD Automatic Call Distribution

Automatic call distribution

API Application Programming Interface

Interface for application programs

Block Dialing All numbers of the destination phone number are entered before the

handset has been lifted. In this case, it is still possible to change the

phone number after it has been entered. The phone number will be

dialed completely (as a block) when the handset is lifted. The

opposite of this is ‘Overlap Sending’.

CAPI Common ISDN Application Programmable Interface

CAPI is the software interface, which regulates the data transfer

between the ISDN card and the applications. The CAPI is a standard,

which also supports the D-channel protocol of the Euro-ISDN (DSS1)

in the CAPI Version 2.0.

CCITT Comité Consultatif International Télégraphique et Téléphonique

International consulting committee for telegraph and telephone

service; known as ITU-T today

CDR Call Detail Record

A call detail record provides statistical information, such as caller,

duration and cost of the connection.

Client PC The client PC is an single workstation computer (PC). Many client PCs

are connected to a server via the network.

CMI Cordless Multicell Integration

Multicellular wireless network for cordless equipment