voice commands to trigger the functions

[deshna-jain]

[Neilblaze]

Since this Voice Based email service is mainly targeted towards the visually impaired, so we need some simple invocations or voice commands which will use Google's Speech-API and other suitable API's to trigger the functions.

Some of the invocations can be:

- Send an Email
- Can you send an email?
- Hey Google can you send a mail?
- Please send a mail
- Open Gmail
- Open mail
- Hey Google open Gmail
- Google open Gmail
- Show me Gmail
- Start Gmail

NOTE: It's important for the user to have Gmail pre-installed on his/her smartphone.