User guide

112 1/1551-HSC 901 35/3 Uen C 2005-12-02
database, IP-DSLAMs (through the PEM
Domain Service) and NNM.
Sustainable Cell Rate (SCR)
The upper limit for the average cell rate that
may be transmitted in the PVC.
TAG
Telephony Access Gateway
TCP
Transmission Control Protocol
TFTP
Trivial File Transfer Protocol
Time Synchronization Server
The Time Synchronization Server is used
for setting the real time in the system
elements. The real time is used for making
the time stamps in log files and alarms, and
in the IP DSLAM also for the Remote
Storage. The Server is optional in the
Domain Server, but there must be a Time
Synchronization Server present in the
system
ToIP
Telephony over IP
Transport service
A service, accessible for the users of a
network, providing consistent and well
defined transmission conditions in terms of
for example throughput, packet loss and
delay.
Unbundling
The process of enabling competitive carrier
access to the local loop in order to liberalize
the telecommunications market.
V5.2 multilink
V5.2, including the option of supporting
more than a single E1 system
V5.2
A standard for Local Exchange and Network
Access Node interconnection, using
dynamic allocation of E1 timeslots as voice
bearer media
VLAN
Virtual LAN. A method used to separate and
group traffic within a physical LAN.
VLAN ID
A numerical value identifying a certain
VLAN.
VoGW
Voice Gateway
VoIP
Voice over IP
VPN
Virtual Private Network. Secure
communication between multiple networks
or network devices using insecure public
networks, such as the Internet.