and the receiver must be lifted or "Hands-free" switched on. If you
replace the telephone receiver or turn off "Hands-free", room mon-
itored ends and the performance feature is switched off.
Room monitoring
from external tele-
phones
This function can be used to monitor rooms from an external tele-
phone.
Room monitoring
from internal tele-
phones
You can acoustically monitor a room from an internal telephone in
your PBX. This is set up using the telephone procedures described
in the user's guide. Please read the information on the described
functions in the user's guide.
Router A device that connects different networks at layer 3 of the OSI mod-
el and routes information from one network to the other.
RSA The RSA algorithm (named after its inventors Rivest, Shamir, Adle-
man) is based on the problem of factoring large integers. It therefore
takes a large amount of data processing capacity and time to derive
a RSA key.
RTSP Real-Time Streaming Protocol
S2M interface See Primary Rate Interface.
SAD The SAD (=Security Association Database) contains information on
security agreements such as AH or ESP algorithms and keys, se-
quence numbers, protocol modes and SA life. For outgoing IPSec
connections, an SPD entry refers to an entry in the SAD i.e. the
SPD defines which SA is to be applied. For incoming IPSec connec-
tions, the SAD is queried to determine how the packet is to be pro-
cessed.
SDSL Symmetric Digital Subscriber Line
Server A server offers services used by clients. Often refers to a certain
computer in the LAN, e.g. DHCP server.
ServerPass Part of the T-Com certification services for the Internet. Digital pass
for a company. With the ServerPass, T-Com confirms that a server
on the Internet belongs to a particular company and that this was
verified through the presentation of an excerpt from the business re-
gister.
Service 0190 Additional voice service from T-Com for the commercial distribution
of private information services. The T-Com services are limited to
providing the technical infrastructure and collection processing for
Glossary Teldat GmbH
582 bintec Rxxx2/RTxxx2
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