Discover powerful tools designed to help businesses and organizations plan smarter campaigns, validate phone numbers, scrub contact lists, build IVR call flows, and boost engagement across voice and SMS. Every tool is built to simplify your workflow and maximize your communication success.
Explore Sigma Voice's free tools to verify businesses, format and validate phone numbers, scrub contact and email lists, calculate SMS campaign ROI, and design IVR call flows with ease. Simplify your communication strategy and boost engagement across voice, SMS, and email channels.
Easily verify Canadian businesses with our free CRA business number lookup tool. Search by province for compliance, security, and trusted transactions across Canada.
/business-number-lookupLearn how to perform an EIN lookup to find and verify business Employer Identification Numbers (EINs) for accurate information on registered companies and organizations.
/ein-lookupClean your email list in seconds! Remove invalid, duplicate, and spam emails to improve deliverability and protect sender reputation. Try it for free now!
/email-list-scrubberCreate your IVR call flow with our free drag-and-drop builder. Add greetings, menus, transfers, and more—then export or send it to Sigma Voice to go live. No coding needed.
/ivr-call-flow-builderEstimate costs, response rates, and potential ROI for your IVR survey campaigns with our easy-to-use calculator. Optimize your strategy and maximize your investment.
/ivr-survey-roi-calculatorPlan the perfect mix of SMS, voice broadcasting, and email for maximum impact. Optimize outreach based on urgency and audience size—start planning today!
/multi-channel-messaging-plannerInstantly clean your phone list! Remove duplicates, invalid numbers, and Do Not Call (DNC) contacts in seconds. Improve call success with our free scrubber.
/phone-list-scrubberEffortlessly format phone numbers for clean, uniform data. Sigma Voice's phone number formatter ensures consistency for all your contacts, making communication easier.
/phone-number-formatterInstantly validate up to 5 phone numbers for free. Detect mobile, landline, VoIP, or invalid numbers. Fast, secure, and easy with Sigma Voice.
/phone-number-validation-toolCalculate the potential return on investment of your SMS broadcasting campaigns with Sigma Voice's easy-to-use ROI Calculator. Plan effectively and maximize your communication reach.
/sms-broadcasting-roi-calculatorTransform written text into lifelike speech with our easy-to-use Text to Speech Converter. Perfect for accessibility, hands-free communication, and efficient message delivery, this tool enhances engagement and accessibility across various applications.
/text-to-speech-converterCalculate the potential return on investment of your voice broadcasting campaigns with Sigma Voice's easy-to-use ROI Calculator. Plan effectively and maximize your communication reach.
/voice-broadcasting-roi-calculatorRead what our satisfied customers have to say about Sigma Voice. Discover how our advanced communication solutions have transformed their business operations and customer interactions.
Tom was awesome! He spent time on the phone helping me get set up. Great intro by Tom to my new voice blast service! Wish I c...
Sigma was very helpful in our company meeting a call documentation requirement for a Federal regulation. Tom gave us great se...
Sigma Voice has allowed our organization to disseminate information quickly, thoroughly and to a wide audience. The software ...
This is the first time I used this company and am extremely pleased with the excellence in customer service. There was no nee...
This service is fantastic. Setting up automated calls is super easy and affordable. I highly recommend it.
Sigma Voice was so easy to set up. I needed to get an immediate message out to my 60+ family members. I sent a sign up messag...
Globe Life is a leading insurance provider known for its trusted coverage and excellent customer service.
Harvard University, one of the world's most prestigious institutions, trusted our solutions for communication excellence.
Sears has relied on innovative solutions to improve its customer outreach and retail operations.
The largest industrial union in North America trusts us for seamless communication solutions.
UNITE HERE connects workers across the U.S. with our dependable communication systems.
The American Red Cross depends on us to deliver messages during critical missions and emergencies.
Experience the benefits of Sigma Voice's advanced communication solutions, including IVR, SMS broadcasting, voice broadcasting, and telecom auditing. Sign up today to enhance your customer interactions, streamline your business processes, and optimize your telecom expenses with expert auditing services.
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