ZyXEL Communications U-336SA - Manual (Page 75)

Special Functions 61
Bits Bin. Dec. Description
11 3 Report RING six times.
EDR detection (either CNG or DTMF tones) will be disabled once
detection occurs. However, a customer’s program might not answer
because the setting of the software may require multiple rings to answer.
S51 bits 0-1 control the number of rings that the modem will report
once the CNG or DTMF tone is detected.
The timing relationship between the Caller ID (if enabled), EDR, and
ring detection is as follows:
ring1 ring2 ring3
***--------***--------***------------------------------
3sec 3s 3s 3s S7 time-out
+------+---+------+---+------+---+-------------+----
CID/EDR RD EDR RD EDR RD EDR RD
CID=Caller ID task RD=Ring Detection task EDR=EDR task
ON OTE
: D
URING THE
EDR
PERIOD
,
ANY
AT
COMMAND WILL DISABLE THE
EDR
FUNCTION
.
EDR Application Example
If we use ZFAX as our fax receiving application and we don’t want it to
answer the call unless it is a fax call, the way to set it up would be:
1. Set ZFAX to answer on 2 rings.