Hey again!

Just an update incase this information is of use to anyone else. I've managed to make a normal voice telephone call using the E3 through the handset.

Here are the commands I used:

ATZ AT+FCLASS=8 AT+VIP ATM0 ATX0 AT+VNH=1 AT+VLS=2 ATDT<number>;

You can probably get away without some of those - the important ones really are:

AT+FCLASS=8 <places the modem into voice mode> ATM0 <turns off the internal speaker> ATX0 <prevents looking for a dialtone before dialing - you may not need this> AT+VLS=2 <selects the handset as the analogue source / destination> ATDT<number>; <note the semicolon at the end - this causes the modem to make a voice call not a data one>

Noodles suggested the use of ATM0 - works a treat! Thanks.

M.

-----Original Message----- From: e3-hacking-bounces@earth.li [mailto:e3-hacking-bounces@earth.li]On Behalf Of Martin Whitaker Sent: 09 August 2006 18:42 To: e3-hacking@earth.li Cc: Martin Whitaker Subject: [E3-hacking] AT commands to make voice calls - need help!

Hey Folks,

I've been trying to find the right sequence of AT command to make a normal voice call on the E3 through it's internal modem. I haven't managed it yet, so am looking for suggestions. Apologies for the long mail!

So far I've managed to make a phone call through the speaker and mic on the base using:

AT+FCLASS=8 AT+VIP AT+VNH=1 AT+VSP=1 AT+VGM=127 ATDT<number>

..all fairly standard stuff. Having done that I then tried messing around with AT+VLS to set the source, only I didn't get very far. All of the options either reported 'ERROR' or resulted in no source connected, with the exception of AT+VLS=2 and AT+VLS=3, both of which seem to connected the handset as well as the speakerphone, mostly causing lots of feedback.

AT+VLS=? will report the valid options, here is the output:

AT+VLS=? 0," ",0000000000,0000000000,B084008000 1,"T",0B8418E000,0FE418E000,0B8419E000 2,"L",0884008000,0CE4008000,0884018000 3,"LT",0B8418E000,0FE418E000,0B8419E000 4,"S",0084008000,0484008000,3084018000 5,"ST",0B8418E000,0FE418E000,0B8419E000 6,"M",0084008000,04E4008000,3084008000 8,"S1",0084008000,0484008000,3084018000 9,"S1T",0B8418E000,0FE418E000,0B8419E000 11,"M1",0084008000,04E4008000,3084008000 13,"M1S1T",0B8418E000,0FE418E000,0B8419E000 14,"H",0084008000,04E4008000,3084018000 15,"HT",0B8418E000,0FE418E000,0B8419E000 19,"M1S1",0084008000,04E4008000,3084018000 20,"t",0B8418E000,0FE418E000,BB8419E000

According to the Conexant AT command reference the letters in the first column mean:

L Local Phone. T Telephone Line. M Internal Microphone. M1 External Microphone. S Internal Speaker. S1 External Speaker. H External Microphone and Speaker combination (handset or headset).

..so it would appear that the handset on the E3 is classed as the 'local phone'. Not that it really helps me much.

On a different thread of investigation I can successfully use 'vm' from the mgetty/vgetty package to record and playback sounds from the handset. When I do that the base speaker and microphone are definatly NOT turned on, so all appears well. So... I dumped the list of AT command which 'vm' was sending to the modem... they are as follows:

voice command: 'AT+FCLASS=8' -> 'OK' : Place in voice mode voice command: 'AT+VSM=?' -> '' : List compression modes available voice command: 'AT+VSD=40,70' -> 'OK' : Silence detection voice command: 'AT+VGT=127' -> 'OK' : Voice gain transmit (playback volume) voice command: 'AT+VGR=127' -> 'OK' : Voice gain receive (record gain) voice command: 'AT+VRA=70;+VRN=10' -> 'OK' : Ringback goes away timer, Ringback never appeared timer voice command: 'AT+IFC=2,2' -> 'OK' : Setup Flow control voice command: 'AT+VCID=1' -> 'OK' : CallerID enabled with formatted info voice command: 'AT+VNH=0' -> 'OK' : Enable automatic hangups voice command: 'AT+VIT=0' -> 'OK' : Voice inactivity timer voice command: 'AT+VDR=1,15' -> 'OK' : Distinctive ring

voice command: 'AT+FCLASS=0' -> 'OK' : Put back into normal mode voice command: 'AT' -> 'OK' voice command: 'AT+FCLASS?' -> '' : Report available modes voice command: '' -> 'OK'

voice command: 'AT+FCLASS=8' -> 'OK' : Place in voice mode voice command: 'AT' -> 'OK' voice command: 'AT+VLS=2' -> 'OK' : Select analog source '2' voice command: 'AT+VSM=130,8000' -> 'OK' : Setup compression method voice command: 'AT+VSM=130,8000' -> 'OK' : Setup compression method voice command: 'AT+IFC=2,2' -> 'OK' : Setup Flow control voice command: 'AT+VTX' -> 'CONNECT' : Enter playback mode

(plays voice here)

So.... does anyone have any suggestions as to what I can try next? (or even better has anyone managed to make a phone call with just the handset enabled and can tell me how?).

Regards, Martin.

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