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<TITLE>Examples of Voice Mode Operation</TITLE>
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<B><FONT SIZE=+3>E</FONT>XAMPLES OF <FONT SIZE=+2>V</FONT>OICE <FONT SIZE=+2>M</FONT>ODE <FONT SIZE=+2>O</FONT>PERATION</B>
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<LI>Greeting message recording (Put a MIC into dial-up line RJ11 jack)
<LISTING>
DTE DCE comments
------------- ----------- ---------------------
AT+FCLASS=8 ---> Switch to voice mode
<--- OK
AT+VSM=? --->
1;CELP;1;0;(9600)
2;ADPCM;2;0;(9600)
3;ADPCM;3;0;(9600)
30;ADPCM;3;0;(9600)
4;ADPCM;4;0;(9600)
<--- OK
AT+VSM=1 ---> Select CELP compression method
<--- OK
AT+VLS=8 ---> Activate external MIC on Line
Jack
<--- VCON
AT+VRX ---> Start to record
<--- CONNECT
<--- <DATA>
AT ---> Stop recording
<--- <DATA>
<--- <DLE><ETX>
<--- VCON Return to commnad state
AT+VLS=0 ----> Deactivate external MIC on Line
Jack
<--- OK
AT+FCLASS=0 Return to data mode
<--- OK
</LISTING>
<LI>Voice file playing via internal speaker
<LISTING>
DTE DCE comments
----------- ----------------- -------------------
AT+FCLASS=8 ---> Switch to voice mode
<--- OK
AT+VSM=? --->
1;CELP;1;0;(9600)
2;ADPCM;2;0;(9600)
3;ADPCM;3;0;(9600)
30;ADPCM;3;0;(9600)
4;ADPCM;4;0;(9600)
<--- OK
AT+VSM=1 ---> Select CELP compression method
<--- OK
AT+VLS=16 ---> Activate internal speaker
<--- VCON
AT+VTX ---> Start to play
<--- CONNECT
<DATA> --->
<DLE><ETX> --->
<--- VCON Return to commnad state
AT+VLS=0 ---> Deactivate internal speaker
<--- OK
AT+FCLASS=0 Return to data mode
<--- OK
</LISTING>
<LI>Voice file playing via line
<LISTING>
DTE DCE comments
----------- -------------- --------------------
AT+FCLASS=8 ---> Switch to voice mode
<--- OK
AT+VSM=? --->
1;CELP;1;0;(9600)
2;ADPCM;2;0;(9600)
3;ADPCM;3;0;(9600)
30;ADPCM;3;0;(9600)
4;ADPCM;4;0;(9600)
<--- OK
AT+VSM=1 ---> Select CELP compression method
<--- OK
AT+VLS=2 ---> Connect to line
<--- VCON
AT+VTX ---> Start to play
<--- CONNECT
<DATA> --->
<DLE><ETX> --->
<--- VCON Return to commnad state
AT+VLS=0 ---> Deactivate line connection
<--- OK
AT+FCLASS=0 Return to data mode
<--- OK
</LISTING>
<LI>Answering machine (Voice call)
<LISTING>
DTE DCE comments
----------- -------------- -------------------
AT+FCLASS=8 ---> Switch to voice mode
<--- OK
AT+VSM=? --->
1;CELP;1;0;(9600)
2;ADPCM;2;0;(9600)
3;ADPCM;3;0;(9600)
30;ADPCM;3;0;(9600)
4;ADPCM;4;0;(9600)
<--- OK
AT+VSM=1 ---> Select CELP compression method
<--- OK
AT+VLS=2 ---> Connect to line
<--- VCON
AT+VTX ---> Start to play greeting message
<--- CONNECT
<DATA> --->
<DLE><ETX> --->
<--- VCON return to commnad state
AT+VRX ---> Start to record
<--- CONNECT
<--- <DATA>
<--- <DLE>b DCE detects busy tone
or or
<DLE>q long period of quiet
AT ----> Stop recording
<--- <DATA> DCE deliver remaining data
<--- <DLE><ETX>
<--- VCON Return to commnad state
AT+VLS=0 ---> Deactivate line connection
<--- OK
AT+FCLASS=0 Return to data mode
<--- OK
</LISTING>
<LI>Answering machine (Fax call)
<LISTING>
DTE DCE comments
----------- -------------- ------------------
AT+FCLASS=8 ---> Switch to voice mode
<--- OK
AT+VSM=? --->
1;CELP;1;0;(9600)
2;ADPCM;2;0;(9600)
3;ADPCM;3;0;(9600)
30;ADPCM;3;0;(9600)
4;ADPCM;4;0;(9600)
<--- OK
AT+VSM=1 ---> Select CELP compression method
<--- OK
AT+VLS=2 ---> Connect to line
<--- VCON
AT+VTX ---> Start to play greeting message
<--- CONNECT
<DATA> --->
<--- <DLE>c T.30 fax calling tone detected
or or
<DLE>5 DTMF digit '5' detected
<DATA> --->
<DLE><ETX> --->
<--- VCON Return to commnad state
AT+FCLASS=2 ---> Try to handshake Fax mode
<--- OK
ATA --->
Switch to fax mode and answer fax call
.
.
.
</LISTING>
<LI>Answering machine (Data call)
<LISTING>
DTE DCE comments
----------- ------------- --------------------
AT+FCLASS=8 ---> Switch to voice mode
<--- OK
AT+VSM=? --->
1;CELP;1;0;(9600)
2;ADPCM;2;0;(9600)
3;ADPCM;3;0;(9600)
30;ADPCM;3;0;(9600)
4;ADPCM;4;0;(9600)
<--- OK
AT+VSM=1 ---> Select CELP compression method
<--- OK
AT+VLS=2 ---> Connect to line
<--- VCON
AT+VTX ---> Start to play greeting message
<--- CONNECT
<DATA> --->
<DLE><ETX> --->
<--- VCON Return to command state
AT+VRX ---> Start to record
<--- CONNECT
<--- <DATA>
<--- <DLE>s DCE detects silence
AT ----> Stop recording
<--- <DATA> DCE deliver remaining data
<--- <DLE><ETX>
<--- VCON return to command state
(DTE delete this silence file)
AT+FCLASS=0 --->
<--- OK
ATA ---> Try to handshake data mode
Switch to data mode and answer data call
.
.
.
</LISTING>
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<P>
<A HREF="@HTMLPATH@/Modems/ZyXEL/compression.html"><IMG SRC="@HTMLPATH@/icons/next.gif"> Voice data compression</A>.<BR>
<A HREF="@HTMLPATH@/Modems/ZyXEL/voice.html"><IMG SRC="@HTMLPATH@/icons/back.gif"> ZyXEL Advanced Voice Capability</A>.
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<ADDRESS>
<A HREF="@HTMLPATH@/sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>.
Last updated $Date: 1998/10/12 20:47:51 $.
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