Specifications

AN93
Rev. 0.9 109
Table 76. Voice Commands
AT Commands Purposes
AT:U71,11 Tell modem send/receive data in linear mode to/from Si3000 interface.
AT*Y254:W0059,7785 Enable Si2457 modem TDMA’s interface by setting LSBit of memory
0x0059.
AT*Y254:W004B,011C Write to Si3000 Control Reg1: Line Driver, Handset Driver, and Micro-
phone Bias Normal Operations are enabled.
AT*Y254:W004B,0200 Write to Si3000 Control Reg2: HPF enabled, PLL divided by 5, Digital
Loopback Off.
AT*Y254:W004B,055A Write to Si3000 Control Reg5: Line-In, Mic-In, Handset-In, FIR are acti-
vated.
AT*Y254:W004B,067F Write to Si3000 Control Reg6: Line-Out, Handset-Out are activated.
AT*Y254:W004B,075F Write to Si3000 Control Reg7: SPKR_L, SPLR_R are activated.
ATH1 Off-hook command for calling.
AT.1 Dial individual number 1.
AT.0 Dial individual number 0.
AT.4 Dial individual number 4 and wait for answer.