Paradyne 3810 User Manual

Page 138

COMSPHERE 3800 Series Modems

14-4

November 1996

3810-A2-GB30-20

Table 14-1

(2 of 12)

3800 Series AT Commands

Command

Front Panel

Branch

Description

n (cont’d)

W or + – Wait for dial tone. Modem waits for a second dial tone before

processing the dial string. This can be the initial dial tone or a second
tone received when dialing through a tandem PBX (for example,
9+555-6789), or when invoking special features (for example,
70#W555-6789, where 70# disables Call Waiting).

R – Reverse Dial mode. Causes the originating modem to send out an

answertone once it no longer detects ringback. (Ringback is the ring you
hear at the originating site when making a call.) The R parameter must be
the last character in the dial string. For correct operation, at least one
ringback must be detected; therefore, the remote modem should be
configured to answer on the second ring or subsequent rings.

@ – Quiet answer. Wait for five seconds of silence after dialing the number. If

the silence is not detected, the modem sends either a NO ANSWER result
to the DTE.

! –

Hook flash. This causes the modem to go on-hook for 0.5 seconds then
return to off-hook.

; – Return to Command mode. Modem returns to Command mode after

dialing a number without disconnecting the call. This is useful when the
number exceeds 40 characters, or when the wait time between parts of a
dial string is unknown.

Space, – , and ( ) . These characters are ignored by the dial string and can be

included in the dial string to enhance readability.

DS=

Dial Stored Number
Dials the number stored in Location

n (1–10). (To store a telephone number,

refer to the &Z

n=x command.)

Call Setup\Dial\Dial
Directory:

Command Character Echo
E0

Disables echo to the DTE.

Enables echo to the DTE.

Configure\Edit\DTE
Dialer

Hook Switch Control
H0

Modem goes on-hook.

Modem goes off-hook.

H0: Call Setup\
Disconnect

Control\Remove Make
Busy

H1: Control\Make Busy