Redtie is the Multi-channel Messaging Platform with channels like Text, Email, Voice & Chat. With Redtie Gmail Ad-ons, it's easy to deliver the right message, to the right person, at the right time via the right communication channel they prefer.

A Redtie user can send a text and voice message with rewards to any one or more of his/her contacts in Redtie from Gmail Redtie add-on
Steps -
Install Redtie add-on in Gmail.
Gmail authorization
Connect with Redtie
Choose a Business profile
The senders email address is checked and tracked in Redtie and pulled to show in the add-on
Now the sender can type in a phone number and send a text and voice message with rewards from the add-on.
Redtie will deliver the message to the typed in phone number.