54 V85 Desktop VoIP Phone User Guide
YML772 Rev1
RIP Routing Information Protocol The original TCP/IP routing protocol.
There are two versions of RIP: version and version II.
RJ-11 Registered Jack Standard-11 The standard plug used to connect
telephones, fax machines, modems, etc. to a telephone jack. It is a
6-pin connector usually containing four wires.
RJ-45 Registered Jack Standard-45 The 8-pin plug used in transmitting
data over phone lines. Ethernet cabling usually uses this type of
connector.
routing Forwarding data between your network and the Internet on the most
efficient route, based on the data’s destination IP address and current
network conditions. A device that performs routing is called a router.
rule See filtering rule, NAT rule.
SDNS Secondary Domain Name System (server) A DNS server that can be
used if the primary DSN server is not available. See DNS.
SNMP Simple Network Management Protocol The TCP/IP protocol used
for network management.
Splitter A device that splits off the voice component of the DSL signal to a
separate line, so that data and telephone service each have their own
wiring and jacks. The splitter is installed by your telephone company
where the DSL line enters your home. The CO also contains splitters
that separate the voice and data signals, sending voice to the PSTN
and data on high-speed lines to the Internet. See also CO, PSTN,
splitterless, microfilter.
splitterless A type of DSL installation where no splitter is installed, saving the
cost of a service call by the telephone company. Instead, each jack
in the home carries both voice and data, requiring a microfilter for
each telephone to prevent interference from the data signal. ADSL
is usually splitterless; if you are unsure if your installation has a
splitter, ask your DSL provider. See also splitter, microfilter.
STUN Simple Traversal of UDP (User Datagram Protocol) through NAT
(Network Address Translation)
subnet A subnet is a portion of a network. The subnet is distinguished
from the larger network by a subnet mask which selects some of
the computers of the network and excludes all others. The subnet’s
computers remain physically connected to the rest of the parent
network, but they are treated as though they were on a separate
network. See also network mask.
Subnet mask A mask that defines a subnet. See also network mask.
TCP See TCP/IP.
TCP/IP Transmission Control Protocol/Internet Protocol The basic protocols
used on the Internet. TCP is responsible for dividing data up into
packets for delivery and reassembling them at the destination,
