Operation Manual

7
LANCOM Advanced VoIP Client
 What is meant by…?
1 What is meant by…?
This chapter defines in detail the terminology commonly used throughout the
LANCOM Advanced VoIP Client documentation.
You will find additional technical terms used in connection with the “Voice-
over-IP” technology in App. E:,
Technical Terms .
1.1 Subscriber
Persons, who take part in a telephone conversation, are called subscribers.
1.2 Number ( Telephone Number)
A number is a sequence of digits or a symbolic name.
Examples of Valid Numbers
1.3 Line
The term “Line” refers to a potential telephone connection, which can be used
to place your telephone calls. Due to the fact that LANCOM Advanced VoIP
Client uses the IP protocol or SIP protocol to transmit telephone calls, this
new IP telephony is not connected to an actual “cable connection” for each
telephone call. On the contrary; it enables you to carry out several
independent calls simultaneously via your network connection. LANCOM
Advanced VoIP Client continues to use the familiar term “Line” for the
“logical” connection option for a telephone call, even though a “physical” line
is no longer required for this connection. This concept allows you, on the one
hand, to continue to use the practical and simple term “Line” – a subscriber
Number Meaning
02319776123 The number of a subscriber who can be reached via the public
telephone network.
Please note that you must always use the area code in order for
the call to be delivered.
TOMMY Alias name of a subscriber, which is assigned for a subscriber
with the same provider. The subscriber, who is being called, must
be known there under the user name TOMMY.
[e-mail] SIP-URI. This is constructed similarly to an e-mail address, and
consists of a user name and the realm (name range, rather like a
domain).