Sigma Voice helps online stores and DTC brands increase revenue and customer satisfaction with automated messaging solutions. From recovering abandoned carts and confirming orders to sending delivery alerts and post-purchase surveys, our voice and SMS tools integrate seamlessly into your e-commerce workflow to help you grow faster and communicate smarter.
In the e-commerce industry, fast and personalized communication is essential for increasing conversions, reducing cart abandonment, and improving customer satisfaction. Whether you're sending order confirmations, shipping updates, delivery alerts, or post-purchase surveys, Sigma Voice provides reliable, scalable solutions. Our automated voice, SMS, IVR, and phone number validation tools help online retailers engage customers in real time, recover lost sales, and streamline operations — all while maintaining high deliverability and compliance standards.
Voice broadcasting enables e-commerce brands to send automated phone calls for order updates, promotional campaigns, and delivery confirmations. With support for both pre-recorded audio and text-to-speech, online retailers can deliver personalized, scalable messages that boost customer satisfaction and drive repeat purchases.
Notify customers when orders are confirmed, shipped, or out for delivery — reducing support inquiries and improving confidence.
Re-engage high-value customers with automated voice reminders encouraging them to complete their purchases.
Announce limited-time offers or exclusive deals to drive urgency and increase sales during key campaigns.
Interactive Voice Response (IVR) systems help e-commerce brands automate inbound and outbound phone interactions. From order status and return policies to customer support routing and feedback surveys, IVR improves the shopping experience while reducing support costs and manual workload.
Let customers check their order or shipping status through self-service IVR without waiting on hold.
Route callers to order support, returns, or product inquiries using customizable call flows.
Gather customer feedback after purchase or delivery with outbound IVR surveys to improve service and retention.
SMS broadcasting helps e-commerce businesses deliver time-sensitive messages that drive conversions and enhance the customer experience. From cart recovery and order confirmations to shipping alerts and promotional campaigns, SMS ensures your messages are seen instantly — with high open and response rates.
Automatically remind shoppers about items left in their carts and incentivize them to complete their purchases.
Keep customers informed with real-time updates about order confirmations, shipping status, and delivery notifications.
Drive sales by sending flash sale alerts, discount codes, and limited-time offers directly to customers' phones.
Accurate customer contact data is essential in e-commerce, where real-time communication influences conversion rates, delivery success, and customer satisfaction. Sigma Voice’s phone number validation tools help verify mobile, landline, and VoIP numbers before launching SMS or voice campaigns — improving reach and reducing messaging costs.
Identify and validate mobile numbers to support TCPA-compliant messaging and opt-in list management.
Remove invalid or outdated numbers and segment contacts by behavior, purchase history, or region.
Maximize ROI by ensuring messages reach real customers — and avoid wasting spend on unreachable contacts.
E-commerce businesses often use multiple communication tools, virtual numbers, and third-party platforms — which can lead to hidden telecom costs, redundant services, and overbilling. Sigma Voice’s telecom auditing service uncovers inefficiencies, eliminates waste, and reduces expenses without requiring a carrier change.
Analyze telecom bills, platform charges, and number usage to detect billing errors, expired discounts, or unnecessary services.
Identify inactive or redundant phone lines tied to marketing campaigns, past vendors, or discontinued support channels.
Reduce overhead and redirect savings to marketing, fulfillment technology, or customer acquisition — without impacting performance.
Sigma Voice delivers secure, scalable, and compliant communication tools for e-commerce brands. Whether you're sending order alerts, marketing promotions, or voice-based delivery updates, every message is protected with enterprise-grade safeguards to ensure customer data privacy and platform integrity.
All customer data — including call logs, SMS messages, and contact information — is encrypted in transit using secure protocols to prevent unauthorized access.
All voice and SMS traffic is routed through secure telecom infrastructure to avoid spoofing, interception, or delivery tampering.
Role-based permissions and user authentication ensure that only authorized team members can access dashboards, campaign data, or customer details.
Sigma Voice aligns with NIST and ISO 27001-aligned practices, supporting best-in-class security and risk management for e-commerce messaging.
Built-in tools help manage opt-ins, opt-outs, and user preferences across campaigns — in compliance with CCPA, PIPEDA, and our Anti-Spam Policy.
Real-time monitoring helps detect anomalies, reduce abuse, and preserve the security and integrity of your outbound communication workflows.
With Sigma Voice, e-commerce businesses can deliver timely and personalized communication while protecting customer data and complying with global privacy regulations.
In the e-commerce space, communication systems — including IVR, voice broadcasting, SMS messaging, phone number validation, and telecom auditing — must comply with privacy laws, marketing regulations, and consumer data protection standards. Sigma Voice helps online retailers meet these obligations while enhancing customer engagement and automating transactional workflows.
All automated voice and SMS messages must comply with the Telephone Consumer Protection Act (TCPA), which governs consent, opt-ins, and permissible contact windows.
Promotional messages require clear and documented opt-in consent. Sigma Voice helps track and manage consent in accordance with CCPA, PIPEDA, and anti-spam regulations.
Every message must identify your business and state the purpose of the outreach to maintain compliance and build customer trust.
Non-urgent messages should be delivered between 8 AM and 9 PM local time, in line with legal guidance and customer communication best practices.
Transactional messages (e.g., order confirmations or shipping alerts) may be exempt from marketing consent requirements but must still be delivered securely and responsibly.
All customer data, messages, and call logs must comply with data privacy laws including CCPA, PIPEDA, and align with the NIST Cybersecurity Framework and ISO 27001-aligned practices. Details are outlined in our Privacy Policy and Terms of Service.
By aligning with these legal and privacy standards, e-commerce brands can confidently automate their customer communication, protect personal data, and avoid regulatory risk. For additional guidance, consult your legal team or review our Privacy Policy and Terms of Service.
Sigma Voice empowers e-commerce businesses with a secure, scalable communication platform built to drive conversions, improve customer satisfaction, and streamline operations. From IVR systems and voice broadcasting to SMS messaging, phone number validation, and telecom auditing — every tool is designed to enhance the customer experience and reduce operational friction.
Whether you're recovering abandoned carts with voice or SMS reminders, sending real-time shipping updates, validating contact numbers before promotions, or optimizing telecom costs — Sigma Voice helps online retailers communicate smarter, faster, and more effectively.
Trusted by DTC brands, online marketplaces, and multi-channel sellers, Sigma Voice is your partner in delivering personalized, reliable communication that supports growth and maximizes customer loyalty.
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.
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