Z02215
Single Chip Modem with Integrated Controller, Data Pump, and AFE
34
Dial Modifiers
Dial modifiers perform special functions within a dial command.
Example:
ATDT9W1552368!@#71234;<CR>
In this example, the modem is instructed to use tone dialing
•
•
•
•
•
•
(
T
), to access a number outside a PBX
(
9
), to wait for dial tone
(
W
), to dial the number 1552368
To do a hook-flash (for example, timed break recall)
To wait for quiet answer
To issue the PBX transfer code
#7
before dialing extension number 1234.
After these instructions are executed, the modem returns to the COMMAND state
before initiating the handshake.
.
Table 4. Dial Modifiers
Modifier
Function
0–9 A B C D # *
Dialing digits and characters.
The digits and characters 0-9 A B C D # * specify the
numbers the modem dials. The characters A B C D # * apply only to tone dialing. The
characters are ignored for pulse dialing. The characters A, B, C, and D may be disabled
in countries prohibiting their use.
P
Pulse dialing.
P selects the PULSE method of dialing. This command may be issued
within a dial command or as a separate command. The default method of dialing is
PULSE.
Originate a call in ANSWER mode.
R causes the modem to handshake in ANSWER
mode so it can originate a call to an originate-only modem.
Dial a stored telephone number.
The equals command S=0 instructs the modem to
dial a stored telephone number if the modem has nonvolatile memory (EEPROM) to
store country parameters. Stored numbers may contain any dial digits or modifiers.
Telephone numbers may be stored using the &Z command. If the modem does not
feature nonvolatile memory (EEPROM) and the S command is issued, an ERROR result
code is returned.
Tone dialing.
T selects the TONE method of dialing. T can be issued within a DIAL
command or as a separate command. The default method of dialing is PULSE.
Wait for dial tone.
W causes the modem to wait for a dial tone before proceeding. If no
dial tone is detected, the modem hangs up the telephone line and returns the NO
DIALTONE result code.
Delay processing of next character.
A comma (,) causes the modem to pause for the
length of time in S-register S8 before processing the next character in a dial string.
R
S=n
T
W
,
PS001907-0904
Dial Modifiers
ZILOG [ ZILOG, INC. ]
