Z02215 查看數據表（PDF） - Zilog

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Z02215

Single Chip Modem with Integrated Controller, Data Pump, and Analog Front End

Zilog 

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.

R

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.

S=n

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.

T

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.

W

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.

PS001907-0904

Dial Modifiers

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