Deutsche Telekom 704PC manual External line seizure

Appendix

Dial-up network

Your computer can use the Microsoft Windows dial-up network facility to connect to an Internet service provider via a modem.

DTMF

Stands for "dual tone multi-frequency," also known as voice frequency dialling. The dialling signals and control functions are transmitted in the form of tones at various frequencies.

DTMF post-dialling

DTMF post-dialling is only possible during an external call when, for example, an automatic announcement prompts you to post-dial digits and symbols (1 - 0, * and #), during fax polling or other applications, e.g. T-NetBox.

ECT (Explicit Call Transfer)

An ISDN feature enabling two external calls to be switched together in the telephone exchange.

E-mail

E-mail is a written message transmitted via an on-line service or the Internet to another subscriber’s e-mail address. The e-mail protocols used in the Internet enable the attachment of data (pictures, programs, etc.) to the e-mail.

Enquiry

You can hold a call and make an enquiry call to another internal or external sub- scriber, then return to your first call.

Exchange

A node in the public telecommunications network.

External line access

External line access levels regulate access to an external line. You can, for example, specify which subscribers are not allowed to make long-distance calls.

External line seizure

Depending on the configuration, an external line can be seized automatically or by dialling 0. This means that when you want to make an external call and you lift the handset, you hear an external dialling tone either immediately or after dialling 0.

IAE

This is a unit consisting of the socket and plug for connecting ISDN devices in Deutsche Telekom’s ISDN.

ISDN

ISDN stands for "Integrated Services Digital Network."

101