Zyxel-communications U-336SA Manual do Utilizador descarregar pdf (Página 72)

58 Special Functions

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 Bit (on) Ring Sequence

1 3 1.2s or 2s on; 4s off

2 4 0.8s on, 0.4s off, 0.8s on; 4s off

3 5 0.4s on, 0.2s off, 0.4s on, 0.2s off, 0.8s on; 4s off

4 6 0.3s on, 0.2s off, 1s on, 0.2s off, 0.3s on; 4s off

ONOTE: IF ALL OF THESE BITS ARE "0" (OFF), ANY RING WITH A DURATION LONGER

THAN 100 MS WILL BE ACCEPTED. USE THIS DEFAULT IF YOU DO NOT HAVE

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.

ONOTE: COUNTRIES OTHER THAN THE U.S. MAY HAVE DIFFERENT SPECIFICATIONS

FOR DIFFERENT RING TYPES. THE MANUFACTURER MAY APPEND OTHER SETS

OF RING TYPE SPECIFICATIONS TO SUIT EACH COUNTRY'S NEEDS.

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Zyxel-communications U-336SA Manual do Utilizador Página 72