Paradyne 3800PLUS User Manual

Page 157

AT Command Set and S-Registers

13-23

3980-A2-GB30-40

October 1998

Table 13-2

(6 of 15)

3800

Plus S-Registers

AT Command

Front Panel Branch

Description

S37

DTR Auto Redial
DTR Auto Redial allows repeated automatic dial backup attempts by
specifying the range of Directory Locations that can be tried. A redial
attempt is made in response to a bad phone number, a busy signal, no
answer, or no quiet answer. The modem must be in Originate mode.

When DTE Dialer Type is DTR=Dirs, DTR Auto Redial (S37) works in
conjunction with the DTR Cont Repeat (S38) configuration option. A redial
attempt is made in response to a low to high transition of DTR.

0= Directory Location 1
1= Directory Locations 1–2
2= Directory Locations 1–3
3= Directory Locations 1–4

9= Directory Locations 1–10

NOTE: The modem must be in Originate mode to perform an automatic

dial backup.

Configure\Edit\
Line_Dialer

S38

DTR Cont Repeat

Determines whether automatic dialing of dial backup directory locations
will be repeated continuously, or halted after the first pass.

Regardless of the setting of S38, dialing is locked out after ten failed
attempts to connect to the same number.

0=Disable
1=Enable

Factory setting is Disable.

Configure\Edit\
DTE_Dialer

S39

Receive Buffer Disconnect Delay
Determines the maximum amount of time the modem can continue to send
data in its Receive Buffer to the DTE after the modem is commanded by
the DTE to disconnect, or after the modem detects a line disconnect.

0=Disable (Immediate disconnect)
1=1 second
2=2 seconds

255=255 seconds

Factory setting is Disable (0).

Configure\Edit\
V42/MNP/Buffer

S40

Auto Make Busy
Register determines if the modem goes off-hook under certain conditions.
This register should only be enabled when the modem is located behind a
user’s Private Branch Exchange (PBX).

0=Disable
1=Enable

Factory setting is Disable.

Configure\Edit\
Line Dialer