AT&T MERLIN LEGEND Installation & Maintenance Manual page 560

Adapters, Accessories, and Applications
The system may need more touch-tone receivers if
Single-line telephone users do not get dial tone.
AVP or IVP AA fails to transfer calls.
Calls fail to ring or calls go to coverage prematurely.
CAS — IS II uses the call information provided by the
system's built-in SMDR feature to process calls.
SPM — IS II reports can be printed out or can be written to a
disk (hard or floppy); however, if they are written to a disk,
they cannot be looked at (write-only file).
SPM — IS II reports should not be printed while the system is
handling more than 100 calls per hour.
Only the CAS — IS II and the SPM — IS II applications can be
connected to a system operating in Behind Switch mode.
Hardware Requirements
IS II uses an AT&T Master Controller — an 6386/SX WGS
processor with UNIX System V/386, Release 3.2.2 including:
Master Controller II processor (with 40-Mbyte, 80-Mbyte,
or 200-Mbyte hard disk and a 3.5-inch floppy disk drive).
An 80-Mbyte or 200-Mbyte hard disk drive is required if
IS II includes either IVP AA or AVP.
video monitor (monochrome or color)
keyboard
optional tape drive (required for systems with a 200-Mbyte
hard disk for saving UNIX files, application program files,
administrative files, and voice system files during backup)
A 355 AF adapter for connecting the Master Controller to the
serial port on the control unit if they are within 50 feet of each
other and are on the same AC branch circuit
Applications 6-25