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==About==
IVRS(Interactive Voice Response System) is commonly used platform to reach people connected through mobile/telephones. This page is about how once can use it to send Voice SMS at any place with minimal requirements.
== Installation and Deployment==
This page helps anyone to deploy IVRS to send voice SMS from your [[Kalpavriksha|Kalpavriksha(Ubuntu)]] machine with a data card. Call charges as per network would apply. Below instructions were modified from [http://mojolab.org/archives/50 Mojolab] site where this was used to install [https://github.com/ccidmysore/swara Swar]a software. This was tested on [[Kalpavriksha|Kalpavriksha(Ubuntu)]] with Huwawei E173 and is currently used in [[GHS Dommaluru | Government High School, Domlur]]. An opensource IVRS program called [http://asterisk.org Asterisk] is used to run Swara software.
This page helps anyone to deploy IVRS to send voice SMS from your [[Kalpavriksha|Kalpavriksha(Ubuntu)]] machine with a data card. Call charges as per network would apply. Below instructions were modified from [http://mojolab.org/archives/50 Mojolab] site where this was used to install [https://github.com/ccidmysore/swara Swar]a software. This was tested on [[Kalpavriksha|Kalpavriksha(Ubuntu)]] with Huwawei E173 and is currently used in [[GHS Dommaluru | Government High School, Domlur]]. An opensource IVRS program called [http://asterisk.org Asterisk] is used to run Swara software.
6. Stop and Restart " core restrat gracefully"
6. Stop and Restart " core restrat gracefully"
7. check Dongle is ready "dongle show devices"
7. check Dongle is ready "dongle show devices"
==Getting Good Quality Audio for Voice-SMS==
Usually in school ambiance, it is difficult to get good quality audio recordings for sending Voice SMS. Great quality audio is very essential for your message to reach your intended audience. Below are few steps one can follow to ensure this:
Before proceeding with below steps, please ensure you have the following with you - Android phone, Audacity software, [https://play.google.com/store/apps/details?id=name.markus.droesser.tapeatalkpro Tape-a-talk] app on your Android and earphones if available.
# Install [https://play.google.com/store/apps/details?id=name.markus.droesser.tapeatalkpro Tape-a-talk] app on your Android phone.
# This IVRS platform requires audio recording in *.wav format, so please record using Tape-a-talk which outputs *.wav format audio by default.
# Set frequency in the android app to 8,000GHz which is another requirement for IVRS.
# Hold your phone at exactly 45<sup>0</sup> degree angle and at half-feet distance from your mouth for better audio capture by phone's microphone.(Use earphones if available)
# Stop the recording when you are done and transfer audio file to your computer.
# Use Audocity to remove any noise from the audio file and export it to same *.wav format with 8,000GHz frequency.(Listen to your audio file in earphones if available)
# Use the exported audio file to send Voice SMS in the IVRS applciation.
[[Category:Ubuntu]]
[[Category:Ubuntu]]