ZyXEL Communications U-336S User Manual page 72

part (cadence) of the ring. Your modem can distinguish up to four types
of ring signals and can be commanded to answer or not answer any one
of these four types of ring signals. Following is a list of these four types
of ring signals. These are the ring types used in the USA. The difference
among the ring types is the two-second ON part of the ring signal. It
comprises a long, double short, or triple short ring.
S-register S40 bits 3-6 are used for distinctive ring control. Each bit
controls the answering of a particular ring type. Setting a bit to "1" (on)
enables answering, setting it to "0" (off) rejects the ring. Note that the
ring may still be heard even if it is not counted as an accepted ring by
the modem.
The control relationships between bits 3-6 in register S40 and the
different ring types are:
Type
1
2
3
4
ON : I
OTE F ALL OF THESE BITS ARE
THAN
DISTINCTIVE RING SERVICE
If more than one type of Distinctive Ring is turned on, RING n will be
reported for an incoming ring signal where n is the ring type number.
ON : C
OTE OUNTRIES OTHER THAN THE
FOR DIFFERENT RING TYPES
OF RING TYPE SPECIFICATIONS TO SUIT EACH COUNTRY
58 Special Functions
Bit (on) Ring Sequence
3 1.2s or 2s on; 4s off
4 0.8s on, 0.4s off, 0.8s on; 4s off
5 0.4s on, 0.2s off, 0.4s on, 0.2s off, 0.8s on; 4s off
6 0.3s on, 0.2s off, 1s on, 0.2s off, 0.3s on; 4s off
"0" (
100
MS WILL BE ACCEPTED
.
. T
),
OFF ANY RING WITH A DURATION LONGER
. U
SE THIS DEFAULT IF YOU DO NOT HAVE
U.S.
MAY HAVE DIFFERENT SPECIFICATIONS
HE MANUFACTURER MAY APPEND OTHER SETS
' .
S NEEDS