Z02215
Single Chip Modem with Integrated Controller, Data Pump, and AFE
25
Table 3. AT Command Set (Continued)
Function and Description
Command
&HT
PTT Test
&HT29
&HT30
&HT31
&HT32
&HT33
&HT34
&HT35
550-Hz guard tone
(continued) (continued)
1800-Hz guard tone
Silence
Detect 2100 Hz answer tone
Detect all supported answer tones simultaneously
Detect dial tone
Detect call progress tones
I
Identification The I command queries the modem for information that can be used to
determine the modem’s compatibility with other software and to ensure the
modem is operating properly.
I0
Product Code. The modem reports its product code to the
terminal. The modem produces information text dependent
upon its features and capabilities.
I1
ROM Checksum. The modem reports the value of its ROM
checksum. The decimal number displayed is the 8- bit sum
(from 0 to 255) of all the bytes in ROM.
I2
I3
I4
ROM Checksum. The modem checks its ROM and reports
a result code of OK or ERROR.
Software Versions. The modem reports its software
versions and release date.
Modem Identification. The modem reports a configurable
identification message to the terminal.
&K
Flow Control This command provides compatibility with the &K functions in the Rockwell AT
command set.
&K0
&K3
&K4
This option disables flow control.
This option enables RTS/CTS flow control. Same as \Q3.
This option enables XON/XOFF Flow control. Same as \Q1.
PS001907-0904
AT Command Set
ZILOG [ ZILOG, INC. ]
