3Com U.S. Robotics 56K Voice, Command Reference Manual

Page: 53 / 210

Distinctive Ring Support 4-11
There are four ring patterns in common use:
These are graphical depictions of each ring pattern.
Commands
Example: Sending
ATS70.0=1.3=1
to your modem enables the
recognition of ring types A and D only.
Ring Description
A 1.2 to 2.0 seconds on, 4.0 seconds off.
B 0.8 second on, 0.4 second off, 0.8 second on, 4.0 seconds off.
C 0.4 second on, 0.2 second off, 0.4 second on, 0.2 second off, 0.8 second
on, 4.0 seconds off.
D 0.3 second on, 0.2 second off, 1.0 second on, 0.2 second off, 0.3 second
on, 4.0 seconds off.
For your modem to Command
Enable recognition of Ring A
ATS70.0=1
Disable recognition of Ring A
ATS70.0=0
Enable recognition of Ring B
ATS70.1=1
Disable recognition of Ring B
ATS70.1=0
Enable recognition of Ring C
ATS70.2=1
Disable recognition of Ring C
ATS70.2=0
Enable recognition of Ring D
ATS70.3=1
Disable recognition of Ring D
ATS70.3=0