Z02205 View Datasheet(PDF) - Zilog

Part Name

Description

Manufacturer

Z02205

MODEM CONTROLLER IDEAL FOR LOW POWER CONSUMPTION, SMALL SIZE REQUIREMENTS

Zilog 

Z02205

Modem Controller

Command

X

Call Progress

#CID= Caller Id Options

ZiLOG

Table 2. AT Command Set (Continued)

Function and Description

The X command controls whether or not a busy signal or dial tone is detected when

dialing. The X command also limits the result codes the modem returns when dialing.

The operation of the X command is configurable for operation in different countries.

X0

Neither busy signal nor dial tone are detected. When a telephone line

connection is made, the result code does not indicate the telephone line data

rate.

X1

Neither busy signal nor dial tone are detected. When a telephone line

connection is made, the result code indicates the telephone line data rate.

X2

Busy signal is not detected. Dial tone is detected. When a telephone line

connection is made, the result code indicates the telephone line data rate.

X3

Busy signal is detected. Dial tone is not detected. When a telephone line

connection is made, the result code indicates the telephone line data rate.

X4

Both busy signal and dial tone are detected. When a telephone line

connection is made, the result code indicates the telephone line data rate.

This is the default value in North America.

The @ and W dial modifiers are not affected by the X command. The @ dial modifier

may return the result codes 8 (NO ANSWER) or 7 (BUSY) each time it appears in the

dial string. The W dial modifier may return the result codes 6 (NO DIALTONE) or 7

(BUSY) each time it appears in the dial string.

The #CID= command controls how the modem displays

North American caller identification information. The #CID=

command is valid only if the Modem Controller software has

been compiled to support Caller ID. If the software has not

been compiled to support Caller ID then the modem responds

with an ERROR result code to a #CID= command.

Caller Id information is displayed only when it is provided by

the telephone company, and only when the terminal data rate

is 2400 bps. Lower data rates are too slow to display the

Caller Id information.

#CID=0 Do not display caller identification information.

This is the default value.

#CID=1 Display the information in as formatted data.

#CID=2 Display the information as unformatted data.

#CID=?

Display the current setting of the #CID=

command option.

16

PS001000-MOD0599

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