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Glossary
Gigaset DE900 IP PRO / en / A31008-M2210-R101-5-7619 / glossary.fm / 17.09.2012
PRO Version 3, 30.05.2012
M
MAC address
Media Access Control address
Hardware address by means of which each network device (e.g., network card, switch,
phone) can be uniquely identified worldwide. It consists of six parts (hexadecimal num-
bers) separated by a "-" (e.g., 00-90-65-44-00-3A).
The MAC address is assigned by the manufacturer and cannot be changed.
Mbps
Million bits per second
Unit of the transmission speed in a network.
MRU
Maximum Receive Unit
Defines the maximum user data volume within a data packet.
MTU
Maximum Transmission Unit
Defines the maximum length of a data packet that can be carried over the network at a
time.
Music on hold
Music is played while you are making a consultation call or call swapping. The waiting
participant hears music while on hold.
N
NAT
Network Address Translation
Method for converting (private) IP addresses to one or more (public) IP addresses. With
NAT, the IP addresses of network subscribers (e.g., VoIP phones) in a LAN can be hidden
behind a joint IP address for the router in the Internet.
VoIP telephones behind a NAT router cannot be reached by VoIP servers (on account of the
private IP address). To "bypass" NAT it is possible to either use ALG in the router, STUN in
the VoIP telephone or an outbound proxy for the VoIP provider.
If an outbound proxy is made available you must allow for this in the VoIP settings for your
phone.
Network
Group of devices. Devices can be connected in either wired or wireless mode.
Networks can also differ in range and structure:
– Range: Local networks (LAN) or wide-area networks (WAN)
– Structure: Infrastructure network or ad hoc network
Network subscriber
Devices and PCs that are connected to each other in a network, e.g., servers, PCs and
phones.
