Z02215 View Datasheet(PDF) - Zilog

Part Name

Description

Manufacturer

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

24

Table 3. AT Command Set (Continued)

Command

&HT

PTT Test

Function and Description

The &HT command enables the modem to transmit tones for PTT testing. The

test tone is generated until a character is typed on the modem’s terminal. If this

command is issued when the command is disabled by a country configuration,

the modem returns an ERROR result.

&HT0 – &HT9 DTMF tone for digit n where the command is &HTn

&HT10

DTMF tone“*”

&HT11

DTMF tone “#”

&HT12

DTMF tone “A”

&HT13

DTMF tone “B”

&HT14

DTMF tone “C”

&HT15

DTMF tone “D”

&HT16

V.21 channel 1 mark

&HT17

V.21 channel 2 marks

&HT18

V.23 1200bps marks

&HT19

V.23 75bps marks

&HT20

V.21 channel 1 spaces

&HT21

V.21 channel 2 spaces

&HT22

V.23 1200bps spaces

&HT23

V.23 75bps spaces

&HT24

V.22 originate mode

&HT25

V.22 answer mode

&HT26

V.22bis originate mode

&HT27

V.22bis answer mode

&HT28

V.25 calling tone

PS001907-0904

AT Command Set

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