Welcome to Sigma Voice, your trusted partner for intelligent communication. Our industry-leading IVR systems, voice broadcasting, and SMS solutions empower your business to engage customers, streamline interactions, and grow faster. Backed by over 20 years of experience, Sigma Voice delivers reliable, scalable, and easy-to-use tools tailored to your goals.
Sigma Voice offers cutting-edge messaging and voice solutions to help businesses automate communication, improve efficiency, and reduce costs.
Automate inbound and outbound calls with interactive voice response, enabling self-service options and improving customer interactions. IVR allows callers to navigate menus, check account details, make payments, and connect with the right department—reducing wait times and freeing up live agents. You can also run automated IVR surveys or gather feedback after a call with a post-call survey to enhance service and engagement.
Send mass text messages with high open rates, perfect for appointment reminders, promotions, and emergency alerts. Mass texting helps businesses deliver short, impactful messages directly to mobile devices. Bulk texting is ideal for reaching large audiences quickly—perfect for time-sensitive communications like event updates, payment reminders, and customer engagement campaigns.
Deliver pre-recorded voice messages to thousands instantly, ensuring reliable outreach for notifications, alerts, and promotions. Mass calling campaigns help businesses reach their audience quickly. It also supports automated calling workflows for recurring messages, reminders, and updates—ideal for political campaigns, customer service, and emergency alerts.
Clean and classify U.S. and Canadian phone numbers to identify if each number is mobile, landline, VoIP, or invalid. Eliminate dead leads, reduce bounce rates, and improve compliance by validating your contact lists before sending calls or texts. Whether you're preparing a voice broadcast, SMS campaign, or cleaning up CRM records, our validation service ensures your data is accurate, formatted, and ready to go. Try the free phone number validation tool.
Analyze your telecom expenses, identify billing errors, and reduce unnecessary costs to optimize your communication budget. Many businesses overpay for phone and internet services without realizing it. Our telecom audit service uncovers hidden fees, negotiates better rates, and ensures you only pay for what you need. Learn more about the benefits of telecom expense management and see our step-by-step guide on how to conduct a telecom audit.
Sigma Voice provides a range of communication solutions, each serving different business needs. The distribution of service usage highlights the most popular solutions used by businesses for messaging, automation, and cost optimization.
With over 20 years of experience, Sigma Voice provides reliable, secure, and high-quality communication solutions tailored to businesses of all sizes.
Trusted by businesses across industries, Sigma Voice has been delivering top-tier voice and messaging solutions for over two decades.
Our dedicated team provides responsive, knowledgeable support to ensure seamless communication for your business.
We use high-quality, VoIP phone lines to deliver professional-grade voice broadcasting and IVR services.
Whether you're reaching hundreds or millions, our cloud-based system scales with your business without downtime.
We help businesses stay compliant with industry regulations like TCPA while ensuring data security and privacy.
Choose from pay-as-you-go pricing with no hidden fees or secure a customized contract for long-term cost savings and volume discounts.
Sigma Voice powers businesses and organizations across multiple industries, helping them automate communication, improve efficiency, and enhance engagement.
Hospitals, clinics, and pharmacies use Sigma Voice for appointment reminders, patient notifications, and emergency alerts.
Banks and financial institutions rely on Sigma Voice for fraud alerts, payment reminders, and customer notifications.
Businesses use voice and SMS broadcasting for promotions, order updates, and customer support.
Agencies use Sigma Voice for emergency alerts, community updates, and automated reminders.
Schools and universities send automated notifications, attendance alerts, and event reminders.
Delivery and transportation companies use automated calls and SMS for dispatch updates, driver alerts, and scheduling.
At Sigma Voice, we offer cost-effective and flexible pricing for all our services, ensuring that businesses of all sizes can benefit from our communication solutions. Whether you’re using voice and SMS broadcasting, IVR solutions, or telecom auditing, our pricing plans are designed to scale with your needs.
No contracts, no commitments—only pay for the calls or messages you make, perfect for occasional campaigns and variable usage.
Reduce costs with bulk pricing options for high-volume campaigns, ensuring maximum reach at the best rates.
Ideal for businesses with regular communication needs, offering lower per-call/message costs and added features like priority routing and detailed reporting.
Discover the best pricing plan for your needs—Request a custom quote today! Our team will help you find the most cost-effective solution tailored to your specific communication strategy.
At Sigma Voice, security and privacy are at the core of everything we do. Our platform is designed with advanced safeguards to protect customer data, prevent fraud, and ensure regulatory compliance. Whether you're using voice broadcasting, SMS messaging, IVR solutions, or telecom auditing, Sigma Voice provides enterprise-grade protection at every step.
All communications, call logs, and customer data are encrypted in transit and at rest to prevent unauthorized access.
Our cloud-based platform features high-availability architecture, continuous monitoring, and vulnerability detection.
All traffic is routed through secure, trusted telecom providers to reduce fraud, spoofing, and service disruptions.
Role-based access control (RBAC), session logging, and multi-factor authentication (MFA) safeguard sensitive data and system access.
Built-in opt-in/opt-out tracking and DNC support ensure compliance with anti-spam policies and user communication preferences.
Sigma Voice empowers your organization with secure communication tools and robust privacy practices — so you can focus on outreach with confidence.
Sigma Voice is committed to helping you comply with all relevant communication and data protection laws. Whether you’re using our IVR solutions, SMS messaging, voice broadcasting, or telecom auditing, we provide features and documentation to support full regulatory alignment.
All non-emergency calls and texts must comply with the TCPA and DNC rules. Documented opt-in consent is required for automated outreach.
Provide recipients with a clear and accessible method to opt-out. Sigma Voice includes built-in compliance tools to track and manage consent preferences.
Each message must identify your organization and explain the purpose of the outreach. This ensures alignment with U.S. and Canadian transparency regulations.
For more information, please review our Terms of Service, Privacy Policy, and Anti-Spam Policy. Your compliance is our priority.
Read 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.
Prefer to talk right away? Call us at (800) 905-9140.
