Discussion in "GSM and CDMA Discussion" started by    logistic    Mar 30, 2009.
Mon Mar 30 2009, 06:44 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, 08:21 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, 04:48 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, 10:20 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, 04:15 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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sankalp_s Avatar
Posted By sankalp_s
Sat Dec 20 2014, 05:31 PM
For what you want,it is easier to not use interrup...
ExperimenterUK Avatar
Posted By ExperimenterUK
Fri Dec 19 2014, 09:58 PM
For what you want,it is easier to not use interrup...
sankalp_s Avatar
Posted By sankalp_s
Fri Dec 19 2014, 06:04 PM
This version works.Edit it to use either method. ...
muhibraza Avatar
Posted By muhibraza
Fri Dec 19 2014, 08:05 AM
software_developer Avatar
Posted By software_developer
Fri Dec 19 2014, 04:54 AM
Which files i have to use?Please give me .zip fold...
ExperimenterUK Avatar
Posted By ExperimenterUK
Fri Dec 19 2014, 12:21 AM
This version works.Edit it to use either method. ...
sankalp_s Avatar
Posted By sankalp_s
Thu Dec 18 2014, 08:40 PM
SIR THIS CODE IS NOT WORKING.. ORG 000H ; starting...
sankalp_s Avatar
Posted By sankalp_s
Thu Dec 18 2014, 08:36 PM
i've tried this code but faced a syntax error on l...
sankalp_s Avatar
Posted By sankalp_s
Thu Dec 18 2014, 08:32 PM
SIR THIS CODE IS NOT WORKING.. ORG 000H ; starting...
ajay_bhargav Avatar
Posted By ajay_bhargav
Thu Dec 18 2014, 04:24 AM
Code is all ok.. just change EXT0 to EX0... By mis...