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Glossary
SIP client
A SIP client enables Internet telephony (VoIP). It can be installed as software on a PC and
thereby enable Internet telephony via the local network in wireless or wired mode. Wire-
less SIP phones (WLAN handsets) can likewise be used via the local network for Internet
telephony.
SMTP
Simple Mail Transfer Protocol
The SMTP
Protocol
is part of the
TCP/IP
protocol family. It governs the exchange of elec-
tronic mail on the Internet. Your
Internet service provider
provides you with access to an
SMTP server.
SNMP
Simple Network Management Protocol
The SNMP
Protocol
is part of the
TCP/IP
protocol family. It provides a simple procedure
for administering the network based on a system of shared information for manage-
ment data and network management messages (known as traps) and reports the occur-
rence of events within the monitored network (e.g. an alarm message or notification of
configuration changes).
Static IP address
A static
IP address
is assigned to a network component manually during network con-
figuration. Unlike the
Dynamic IP
address, a static (fixed) IP address never changes.
Subnet
A subnet divides a network into smaller units.
Subnet mask
The subnet mask determines how parts of
IP addresses
of a network represent the net-
work number and how many the computer number.
If the subnet mask is in a network that is administered by the Gigaset SX761 dsl, for
example 255.255.255.0, that means the first three parts of the IP address form the net-
work number and only the final part can be used for assigning host numbers. The first
three parts of the IP address of all network components are therefore always the same
in this case.
Switch
A switch, like a Hub, is an element used to link different network segments or compo-
nents. Unlike a hub however, the switch has its own intelligence that enables it to for-
ward packets to only the subnet or network component they are meant for.
See also: Bridge, Hub, Router,
Gateway
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