Black Box 34336 User Manual

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4.0  General Operation and Special Features
Recovery from the front panel, enter the phone number to be dialed followed
by /R (the Dial Line Auto-Recovery command) on the PHONE screen
(shown below).
If you need assistance, see Section 4.2.
An alternate way to configure the Modem for Dial Line Auto-Recovery
(in Hayes mode only) is to use the Hayes AT &Z command to store the
phone number to be redialed and the /R command in memory location 0,
by entering the following command:
AT &Z0=T555-4545/R
Dial Line Auto-Recovery is not enabled until you select DIAL from the front
panel AUTO-DIAL screen. If power is removed from the modem, select DIAL
to re-enable Dial Line Auto-Recovery. To disable Dial Line Auto-Recovery,
select RESET from MAIN MENU screen 3.
4.4.2 R
ECOVERY
P
ROCEDURE
If Dial Line Auto-Recovery is enabled and the Modem goes on-hook, it redials
the stored phone number up to 10 times. It redials 5 times at 30-second
intervals, waits 2 hours, and then redials 5 additional times at 30-second
intervals. The Modem stops redialing after 10 attempts.
If a connection is broken, re-established, and broken again, the full sequence
of 10 redial attempts does not occur unless the Modem is on-line for more
than 1 hour. The modem redials, but it is programmed not to exceed more
than 10 redial attempts in 1 hour.
4.5 DTR Dialing
NOTE
To use DTR dialing in V.25 bis mode, you must use the Summary Setup
feature, explained in Chapter 6.
T555-4545/R 
DEC  CTRL INC
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