It's Easy To Call

Your Faculty

Your Staff

Your Agents

Your Members

Your Candidates

Your Owners

Your Customers

Your Fans

Your Residents

Your Employees

Your Renters

Your Parishioners

Your Applicants

Your Subscribers

Your Vendors

Your Students

Your Attendees

Your Congregation

Your Resellers

Your Contacts

Your Followers

Your Volunteers

Your Suppliers

Your Affiliates

Your Partners

Your Patients

Automated calling, also referred to as voice broadcasting, is one of the fastest and most reliable ways to deliver an important message to your contacts. Try for 14 days and dial up to 200 calls free.

No credit card required.

Automated Calling Products

You'll have full access to all 5 automated outbound calling products.

Each product is designed (and named) to achieve your specific campaign goal.

Thanks for all your help! I'll do this again for re-election! Thanks again!

Political Campaign Director

We made the right choice with Sigma Voice. Thank you very much.

Residential Heating & Air Company

Knowledgeable & responsive staff at the ready with quality support.

School District Administrator

Being able to contact clients before visiting their it takes 5 minutes.

Commercial Landscaping Service

What Calling Can Do For You

Successful management teams in every industry maximize technology to increase revenue, decrease expenses & improve efficiency.


Grow Your Membership

Written emails & texts are great and all, but how much better is a phone call featuring the leader's own voice.

Religious Institutions


More Filled Job Orders

Put down the keyboard and pick up the phone to tell your candidates about job opportunities on a regular basis.

Staffing & Recruiting


Increase Repeat Business

Call your customers to boost a new product lauch, a flash sale or a special VIP Event.

Retail & E-commerce


Well Informed Residents

Call your residents about upcoming events and activities as well as emergency notifications.

Neighborhoods & Communities


Better Campus Communication

Call your students, teachers and adminitsrators with important updates like registration deadlines.

Schools & Universities


Highlight Key Issues

Motivate your members to action with a clear voice message that is easy to understand.

Associations & Unions

"It's just like writing out emails or text messages, except one thing. With calls, each delivered message is heard.

Unwanted Calls vs Sigma Voice Calls

Not all automated phone calls are the same. Noone likes spam. It's kinda like bulk email and texting in that way.

Unwanted Calls Sigma Voice Calls

Phone List

Existing relationships. Customers. Employees. Members.

Caller ID

The actual phone number of the actual organization. Callees can easily call back to speak to the caller.

Time Of Day

Between 9am and 9pm. (Important Emergency Alerts can be sent out at anytime upon approval.)


Order updates. Employee communications. Check-ins. Birthday celebration. Work anniversaries. Service reminders. Holiday wishes. Special promotions. Feedback surveys. Emergency alerts.


More conversations. Increased customer satisfaction. Increased employee retention. Increased member involvement.

Links to US & Canada calling laws

Try Sigma Voice free!

No credit card required. Call 200 people today.