Ringing

AL7024S Quick Start Manual

To test this, call first to a normal telephone and look, if it is ringing. (ATDxxx; with semicolon for speech-mode). Call also from telephone to GSM.

(Response RING or INCOMING SPEECH CALL)

(This is to see, if the GSM-network connects, or if it is a problem with numbering of house-exchange, or bad configured ISDN-phones)

Make speech-connection to phone

Do the same and pick the phone up, the GSM should show "CONNECT (SPEECH)". In the other direction, wait the GSM-module indicating the ring and enter "ATA". Now a CONNECT should show up. At this step you can also test a headset connected to the GSM-Module.

Configure both sides for data-transmission:

-Set ATS0=2 at both sides, so calls are answered after 2 rings.

-Set AT+CSNS=4 / AT+FCLASS=0 at GSM Modem (data mode), specially if you want to receive call with GSM.

-Set data-protocol:

- GSM to ISDN-TA: AT+CBST=71,0,1 (9600 V.110) . Other TA must be set to

V.110 (9600 or higher), other protocols don't work.

-GSM to Analog-Modem: AT+CBST=7,0,1 (V.32 9600 baud) (ev. set analog-modem accordingly).

After the settings, save them with AT&W.

If the other side is an ISDN-TA, this needs an MSN-number to be stored. You could disconnect the ISDN-phone used in step above and set the TA to the same MSN as the phone.

No. AL7020S-QSM-101

Altec Electronic AG

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