Siemens Gigaset DE380 IP R User Manual

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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