Specifications

VoiceFinder VoIP Gateway Configuration Guide (APOS 2.0) Release Version 3.1
AddPac Technology Co., LTD
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converts the data format required for a circuit switching network to the one required
for a packet switching network and the media gateway control device. MGCP may be
used to set up, manage, and complete calls among multiple endpoints. Megaco and
H.248 are the improved version of MGCP.
NAT
Stands for Network Address Translation. NAT is a mechanism for reducing the need
for globally unique IP addresses. NAT allows you to access the Internet as an
organization whose address is not globally unique converts the address to an address
space where the address can be globally routed. NAT is also called Network Address
Translator.
NTP
Stands for Network Time Protocol. NTP, which is built based on TCP, sets a local time
accurately based on a wireless clock and an atomic clock on the Internet. NTP can
synchronize a distributed clock in the unit of milliseconds for a long time.
PABX
Stands for Private Automatic Branch eXchange. PABX is a switch for phones used at
enterprises. PABX is used in Europe, while PBX is used in the U.S.
Packet
A packet is a group of logical data that contains user data and a header where control
data is contained. A packet mainly refers to the unit of network layer data.
PBX
Stands for Private Branch eXchange. PBX, which is located in a subscriber building,
is a digital or analog phone switchboard used to connect private networks to public
phone networks.
PING
Stands for Packet INternet Groper. ICMP echo-processes a response between
messages. PING is used for an IP network to test the accessibility of network devices.
Point to Point Connection
One of the two basic connection types. In ATM, the point to point connection may be
either a one-way connection or a two-way connection between two ATM end systems.
Pont to Multipoint
Connection
One of the two basic connection types. In ATM, the point to multipoint connection is a
one-way connection method that enables a transmitting end-system (root node) to be
connected to multiple receiving end-systems (riff). Compare to: Point to Point
Connection
POTS
Stands for Plain Old Telephone Service. Reference: PSTN.
PPP
Stands for Point-to-Point Protocol. This protocol is the advanced version of SLIP that
enables a router-to-router connection or a host-to-network connection through
synchronous or asynchronous lines. SLIP is designed to be used on an IP, while PPP is
used along with network layer protocols such as IP, IPX, and ARA. PPP has a bulletin
board security mechanism such as CHAP and PAP. PPP has two sub-protocols, LCP
and NCP. Reference: CHAP, LCP, NCP, PAP, and SLIP