RAID Redundant Array of Inexpensive Disks. Several disk drives are placed into a single housing. Data is written over the disk drives in such a way that if one or more of the drives are lost, none of the data will be lost.
REMOTE DIAGNOSTICS Remote diagnostics is available on some modem systems. It allows an engineer to dial into the telephone system and with the use of a PIN code interrogate the program to locate a fault. Occasionally the problem can be repaired remotely but is not, when an engineer arrives, they have a good idea of the fault may be and have the right spare parts available.
RISC Reduced Instruction Set Computer
ROUTE OPTIMISATION Also known as least cost routing, this is where one or more alternative carriers are used and the telephone system is programmed to select more than one carrier for your calls. You program the system with which type of call is to be carried over which network and at which time of day. This enables you to always get the lowest available call charges.
RS232 PORT If you need to connect peripherals such as modems, call logging devices or printers to your telephone system then you will need an RS232 port. This is the same as the serial ports commonly found on computers and printers. An RS232 serial port can be used for basic data transmission via a modem.
