Auerswald COMpact 4000 Operation Manual page 772

Glossary
Terminology
T
T
TAPI
TAPI (Telephone Application Programming Interface) is the name of a standardised software
interface for computer-assisted telephony (CTI). TAPI ensures that software and hardware
from various manufacturers are compatible with each other.
TCP
TCP (Transmission Control Protocol) is a transport protocol that segments data into packets up
to a specified size and reliably sends these individual data packets in the correct sequence to
the recipient address. In this process, every data packet sent must be resent until it has been
confirmed as arrived. In order to make sure this happens, a large amount of information is sent
along with the actual payload data. Most Internet services are implemented with TCP,
e.g., HTTP (WWW), SMTP/POPS (e-mail), etc.
T-Net Functions
Functions available on the analogue T-Net. There are analogue comfort telephones with pre-
defined function keys or menus for T-Net functions such as callback on busy, call forwarding,
splitting or conference calling.
U
UDP
UDP (User Datagram Protocol) is used to send data packet over non-secure communication
lines without a connection. This means that successful transmission is dependent on the appli-
cation and is therefore not always guaranteed. UDP itself does not verify whether data has
been transmitted successfully. When a UDP packet is sent, the sender cannot assume that the
packet will indeed arrive at the recipient. This particular protocol needs only a small amount of
additional information, and results in a better data throughput rate in a well-functioning network,
e.g., on a LAN. UDP is used, e.g., for the DNS (Domain Name Server).
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COMpact 4000 - Firmware V6.6A - Installation, Operation and Configuration V03 03/2016