Get your 30 day free trial with 100 free calls or texts! Sign Up Free
Last Updated: Fri, Apr 21, 2023

Personalize Automated Calls With Text To Speech (TTS) For Appointment Reminders

Sigma Voice offers an easy to use dynamic text to speech (TTS) system that personalizes each phone call to your customers.

What is Text To Speech (TTS)?

Text To Speech (TTS) is a form of speech synthesis that converts text into a voice output.

When TTS was first introduced in the mid-1900's, the voice output sounded much more like a computer voice than a human voice.

After many years of development, TTS still does not sound 100% like a human speaking, but it has come a long way and it is now commonly used in voice broadcast applications.

What does the Text To Speech voice sound like?

Press play to hear an example of how it will sound during an actual text to speech phone call.

Would you like to create your own free text to speech voicemail greeting? Try our text to speech converter. It's free!

Can fields be dynamically merged into a voice broadcast message?

Yes! This technique is commonly used by medical offices.

In a voice broadcasting campaign, the TTS portion of the message can be dynamically merged from the phone number list.

Below is an example TTS voice broadcast message for an appointment reminder. The bold words are dynamically inserted from the phone number list.

Live Answer Example

After the answer and 'hello', your recording will play.

Hello Robert. This is Dr. Smith's office calling regarding your upcoming appointment on February 10th at 10:30am. If for some reason, you need to cancel the appointment with Dr. Smith's office on February 10th at 10:30am please press 0 to be transferred to our office now. Otherwise, we look forward to seeing you soon.

Answering Machine Example

After the answer, voicemail greeting and 'beep', your recording will play.

Hello, this is a message for Robert. This is Dr. Smith's office calling regarding your upcoming appointment on February 10th at 10:30am. If for some reason, you need to cancel the appointment with Dr. Smith's office on February 10th at 10:30am please call our office at 212-555-1212 now. Otherwise, we look forward to seeing you soon.

Can a human recording be dynamically merged instead of Text To Speech?

Yes! A human voice can be used in conjunction with a TTS voice in an automated calling message. Keep in mind that this requires human voice recordings for the merge data fields. For example, if the day of the week is in the message, there needs to be a human voice recording for each day of the week.

Sunday, Monday, Tuesday, Wednesday, Thursday, Friday & Saturday

The setup takes a few more minutes, but it can be worth it to have an all-human voice message. Personalized messages get a much higher response rate than messages that are not personalized.

We're Seeing Stars

Ken Doke profile picture Verified Customer

Ken Doke

Nonprofit Organization

I have been using Sigma Voice for a few years now on a number of campaigns. They have always been reliable and competitive. Their customer service is phenomenal. I highly recommend.

Emma Otto profile picture Verified Customer

Emma Otto

Retail Store

We have used SigmaVoice for our business for a few years now, and it has been a very good experience. The website is simple, straightforward, and easy to navigate. Customer service is excellent; professional and prompt.

Haith Johnson profile picture Verified Customer

Haith Johnson

Retail Store

Absolutely LOVE THIS SERVICE!!! I recommend using Sigma Voice for any growing business!! We have got great responds & is a good way to stay in touch with your customers base! Helps us to turn customers to Loyal Customers to VIP Customers!!!

Pedro Hernandez profile picture Verified Customer

Pedro Hernandez

Medical Offices

This service is fantastic. Setting up automated calls is super easy and affordable. I highly recommend it.

Kristin Taylor profile picture Verified Customer

Kristin Taylor

Senior Living

Sigma Voice was so easy to set up. I needed to get an immediate message out to my 60+ family members. It’s affordable, the reports are amazing, and the customer service is beyond what I expected on a Sunday afternoon. Highly recommended!

Mark Hamilton profile picture Verified Customer

Mark Hamilton

Nonprofit Organization

Sigma Voice exceeded our expectations for our call out needs. When we needed changes made they were happy to do so and performed changes in a timely manner. I highly recommend Sigma Voice.

Sigma Voice Icon

Increase revenue with
Sigma Voice

Get started free

Get started with free personalized support. Create your own custom calling and texting strategy with a Sigma Voice expert.


Schedule consultation

Popular Posts From Our Blog

Check out the Sigma Voice blog to learn about mass calling and texting best practices.



The World of Voice Messaging: Exploring Different Types and Applications

Last Updated: Sat, Apr 15, 2023

Discover the world of voice messaging as we delve into various types and applications of this innovative communication method. In this blog post, we explore the ins and outs of Sigma Voice's automated voice messaging system, voice messaging on iPhone and Android devices, and WhatsApp voice messaging. Learn how these platforms are revolutionizing the way we connect, share information, and engage with one another, making communication more efficient, personal, and dynamic than ever before.


Automated calling for alerts, reminders & updates

Last Updated: Tue, Apr 4, 2023

Your important time-sensitive messages can now be heard with 'one-to-many' automated calling almost instantly by all your customers, employees or members fast.


Voice Broadcasting 101: What Is It? How Does it Work?

Last Updated: Wed, Apr 19, 2023

A complete guide to voice broadcasting which is a technology that allows organizations to quickly and easily deliver important pre-recorded audio messages to 100's or even 1,000's of phones within minutes.