AT&T MERLIN LEGEND Release 4.0 Feature Reference page 450

Feature Reference
To program with a PC, SPM software is needed, along with DOS or UNIX
operating system software (the latter is only necessary if you are using
Integrated Solution II/III). SPM provides an interface to the programming and
maintenance software in the control unit processor module. The SPM software
emulates the display screen and buttons of a system programming console (the
MLX-20L telephone). As shown in Figure 38, the SPM display mirrors the
following three areas of the console:
Display and display buttons (at the top of the SPM screen)
Function buttons (described on the right side of the screen)
Line buttons (represented in the lower portion of the display)
To use SPM for system programming, the PC must be connected to the control
unit. This can be done either directly through the system programming jack on
the control unit or through a modem (modems can be used for either on-site or
remote programming). See System Programming for details on SPM use.
NOTE:
Beginning with Release 3.0, SPM is no longer necessary in order to back up
system programming. System programming can be backed up on a memory
card. For details, see System Programming .
Figure 38. SPM Display
On-Site and Remote Programming
PC-based SPM programming through a modem can be done either on-site or
from a remote location. In both cases, the built-in modem of the control unit is
used. Accessing the modem for on-site programming is done by dialing the
450
Programming