Edr Application Example - ZyXEL Communications U-336S User Manual

Bits
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
***--------***--------***------------------------------
+------+---+------+---+------+---+-------------+----
CID/EDR RD EDR RD EDR RD
CID=Caller ID task
: D
ON
OTE URING THE
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.
Bin. Dec. Description
11 3 Report RING six times.
ring2 ring3
3sec 3s 3s 3s S7 time-out
RD=Ring Detection task
EDR , AT
PERIOD ANY
.
EDR
COMMAND WILL DISABLE THE
Special Functions 61
RD
EDR=EDR task
EDR