Discussion in "GSM and CDMA Discussion" started by    logistic    Mar 30, 2009.
Mon Mar 30 2009, 02:44 AM
#1
Hello everyone,

Is there a way to interface a GSM module so that the controller attached to it externally (8051) can create an IVR menu.

For example, i call a specific mobile number and it starts a menu. e.g
Please press 1 for system status
Press 2 for system shutdown etc etc.
Tue Mar 31 2009, 04:21 AM
#2
you can make use of voice playback ICs and give o/p directly to MIC In of GSM module. and speaker can be connected to DTMF Decoder. you can easily make such IVR system.
Tue Mar 31 2009, 12:48 PM
#3
You said:

and speaker can be connected to DTMF Decoder. you can easily make such IVR system.


You mean like the input of the GSM module connected with DTMF ?

Are there going to be any modems involved ?
Tue Mar 31 2009, 06:20 PM
#4
GSM modules *are* modems.

Most have pins to allow connections to microphones and speakers
so they can act as telephones if wanted.
Wed Apr 01 2009, 12:15 PM
#5
Can you suggest me any good GSM Module (company) or GSM Handset i could start my experiment with ?

I am very new to this stuff. Also the IC for playback would be greatealy appreciated.

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ExperimenterUK Avatar
Posted By ExperimenterUK
Wed Aug 27 2014, 04:59 PM
Your board has two serial ports, are you connectin...
ExperimenterUK Avatar
Posted By ExperimenterUK
Wed Aug 27 2014, 04:45 PM
In your TX code I see where you set payload width ...
enisi Avatar
Posted By enisi
Wed Aug 27 2014, 07:05 AM
It can be more than one ansawer correctly
enisi Avatar
Posted By enisi
Wed Aug 27 2014, 06:57 AM
Port 0 is connected indicator 7 segments, so that ...
siddique Avatar
Posted By siddique
Wed Aug 27 2014, 01:48 AM
Pls check the Tx and Rx functions have made some c...
ExperimenterUK Avatar
Posted By ExperimenterUK
Tue Aug 26 2014, 06:03 PM
I assume you have made the changes I suggested to ...
siddique Avatar
Posted By siddique
Tue Aug 26 2014, 03:20 AM
Hi,Tried your suggestions.when i put the device in...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon Aug 25 2014, 04:00 PM
This tutorial looks useful.http://www.diyembedded....
siddique Avatar
Posted By siddique
Mon Aug 25 2014, 03:30 AM
Hi,I'm currently working on the nRF24L01+ transcei...
gaurav7577 Avatar
Posted By gaurav7577
Mon Aug 25 2014, 12:38 AM
Code which is already loaded is running fine...but...