User manual

MegaPBX- Appendix
11. Appendix A: Glossary of Terms
ATA
Analog Telephone Adapter: Used to connect a standard telephone to a high-speed modem to
facilitate VoIP and/or fax calls over the Internet.
DHCP
Short for Dynamic Host Configuration Protocol, a protocol for assigning dynamic IP addresses
to devices on a network. With dynamic addressing, a device can have a different IP address
every time it connects to the network. DHCP also supports a mix of static and dynamic IP
addresses.
DID
Direct Inward Dial. A specially configured phone line from the telephone company that allows for
dialing inside a company directly without having to go through an attendant. A DID line cannot
be used for out dial operation since there is no dial tone offered. However, it can be configured
so an outside caller can reach an inside extension with a 7-digit number through the phone
company's central office.
DNS
The Domain Name System is the system that translates Internet domain names into IP
numbers. A "DNS Server" is a server that performs this kind of translation.
GATEWAY
A network point that acts as an entrance to another network.
IP ADDRESS
Every machine that is on a network (a local network, or the network of the Internet) has a unique
IP number [four sets of numbers divided by period with up to three numbers in each set. (i.e.
192.168.0.100)] - If a machine does not have an IP address it cannot be on a network.
IVR
Interactive Voice Response: A system to automatically manage incoming calls, IVR can link
phone callers (voice and/or touchtone) with a computer database. It can accept a question,
access the company's database and provide a caller with the information they are seeking. It
can also take information from the caller, convert it to data and input that data to the database.
LAN