Siemens Gigaset DE380 IP R - Manual (Page 75)

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Glossary
Chatting
Form of communication on the Internet. During a chat, brief messages are
exchanged between the communicating parties in real time. Chatting in this
sense is understood to be a written form of communication.
Client
Application that requests a service from a server.
Codec
Coder/decoder
Codec is a procedure that digitizes and compresses analog voice before it
is sent via the Internet, and decodes – i.e., translates into analog voice –
digital data when voice packets are received. There are different codecs,
with differing degrees of compression, for instance.
Both parties involved in the telephone connection (caller/sender and recipi-
ent) must use the same codec. This is negotiated between the sender and
the recipient when establishing a connection.
The choice of codec is a compromise between voice quality, transmission
speed and the necessary bandwidth. A high level of compression, for exam-
ple, means that the bandwidth required for each voice connection is low.
However, it also means that the time needed to compress/decompress the
data is greater, which increases execution time for data in the network and
thus impairs voice quality. The time required increases the delay between
the sender speaking and the recipient hearing what has been said.
COLP/COLR
Connected Line Identification Presentation/Restriction
Service characteristic of a VoIP connection for outgoing calls.
COLP displays the phone number accepting the call on the calling party's dis-
play unit.
The number of the party accepting the call is different from the dialed
number, e.g., if the call is forwarded or transferred.
The called party can use COLR (Connected Line Identification Restriction) to
prevent the number from appearing on the calling party's display.
Consultation call
You are on a call. With a consultation call, you interrupt the conversation
briefly to establish a second connection to another participant. If you termi-
nate the connection to this participant immediately, then this was a consul-
tation call. If you switch between the first and second participant, it is called
Toggling.