Xblue Networks X-50 - Manual (Page 243)

XBLUE Networks 243
13 Glossary of Terms
Glossary
ARP – Address Resolution Protocol – allows devices to find a “host device” using the network layer (MAC
Address). This allows SIP telephone endpoints to use non static IP Addresses when connecting to the
system
ACLEP – Algebraic Code Excited Linear Predication – Reproduces voice transmissions using
mathematical approximation that is determined 15ms prior to the next transmission, which itself is cal-
culating at 10 frames per second. This approximation allows for greater voice compression and signifi-
cantly better voice quality.
ATM – Asynchronous Transfer Mode – A packet switching transfer method designed to transport
real time voice and video over a standard telephone line.
Bridge – A Cable or DSL modem/gateway is required to identify a specific location on their network.
Some ISP units incorporate a router so that the user does not have to purchase another device, while
others use a unit that has no routing capibility, and requires the user to supply a router. When using
remote workers or joining a voice network the ISP units must be set as a bridge, and the X-50 system
is used at the router.
BSS – Basic Service Set – .
BSSID – Basic Service Set Identifier (BSSID) –
CHAP – Challenge Handshake Authentication Protocol – similar to PAP but the ID and password
is encrypted.
CO – Central Office – A legacy telephone company line.
Converged – A converged PBX is a system that can be used with both VoIP and PCM/TDM. The con-
verged system uses the PCM/TDM internally, while a Media Gateway (see Gateway) is used to integrate
the Voice over IP component.
Default Gateway – The default gateway, usually seen as an IP Address, is the location used for end-
points to access the Internet, sometimes called the “Doorway to the Internet”. If the default gateway is
not entered or entered incorrectly, endpoints will have no access to the Internet.