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Sigma Voice: Your Trusted Mass Calling & Mass Texting Partner

Sigma Voice is a leading provider of mass calling and mass texting services, offering reliable, user-friendly, and cost-effective communication solutions since 2004.

At Sigma Voice, we pride ourselves on being the leading provider of mass calling and mass texting services. Founded in 2004 in the beautiful coastal city of Carlsbad, California, we have been continuously evolving to meet the ever-changing communication needs of our diverse clientele.

Our Mission

Our mission is to empower businesses, organizations, and individuals with reliable, user-friendly, and cost-effective communication solutions that strengthen connections with customers, employees, and members. We believe that regular mass communication is essential for success, and that relying solely on email is no longer enough. We are committed to providing our clients with innovative tools that enable them to communicate effectively and efficiently in today's fast-paced world.

Our Values

At the heart of Sigma Voice, our core values guide every decision we make, ensuring that our clients receive the highest standard of service and support. We are dedicated to a customer-centric approach, integrity, innovation, collaboration, and reliability.

The Power of Mass Communication

Sigma Voice understands the importance of reaching your audience through various channels on a regular basis. Our mass calling and mass texting services enable you to:

  • Notify customers of special offers and promotions
  • Keep employees informed about important company updates or emergency situations
  • Engage members with reminders of upcoming events or deadlines
  • Gather valuable feedback through polls and surveys

By integrating our mass communication services into your strategy, you can enhance your connection with your customers, employees, and members, ensuring that your messages are not lost in the sea of emails.

Compliance & Security

Sigma Voice adheres to all relevant regulations and guidelines governing mass calling and mass texting, including TCPA, FCC regulations, CTIA best practices, and the CAN-SPAM Act. We prioritize data security with end-to-end encryption, secure data centers, regular security audits, and strict data privacy policies.


Our dedicated support team is available 24/7, offering comprehensive online resources, customized onboarding and training sessions, and ongoing account management services. We strive to provide prompt, friendly, and knowledgeable assistance.

Choose Sigma Voice as your trusted communication partner and experience the difference of a comprehensive, reliable, and innovative mass communication solution. Let us help you foster lasting connections with your customers, employees, and members while ensuring compliance, security, and exceptional support.

We're Seeing Stars

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.

Andrenia Burgis profile picture Verified Customer

Andrenia Burgis

Political Campaign

This is the first time I used this company and am extremely pleased with the excellence in customer service. There was no need large or small that was not met. I highly recommend them!!!

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.

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.

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.

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!!!

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!

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Popular Posts From Our Blog

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