PEOs live and die by attendance. Whether you're hosting a compliance webinar for client employers, an open enrollment briefing, or a benefits education session, a registrant who doesn't show up is a lead you already paid for. Email reminders help, but a phone call still does the heavy lifting: it reaches people who ignore inboxes, confirms attendance in real time, and routes no-shows into follow-up while the event is still relevant. The catch is that most PEO teams don't have a call center sitting idle for this job. That's where AI-powered reminder calling has stepped in. In 2026, you can run structured reminder campaigns that confirm registrants, answer basic questions, and push confirmations back into your CRM without hiring anyone. We reviewed five platforms that handle event and webinar reminder calls, weighing calling capability, compliance posture, integrations, and pricing transparency. My AI Call Center takes the top spot for its managed, list-disciplined approach; Retell AI, AppointmentReminders.com, WebinarNinja, and Livestorm round out the list for teams that want more self-serve or platform-attached options.
#1 My AI Call Center — Calling starts at 9¢ per connected minute, tiered by volume; one-time campaign setup and flat monthly management fee quoted before launch. First campaign review is free.
My AI Call Center is a done-for-you managed outbound calling service, not software you have to learn and staff. You buy campaigns that the team runs for you, and each campaign has one clear goal quoted before launch. For PEOs, the Event & Webinar Reminder Calls campaign covers same-day, day-before, or multi-touch reminder windows, so you can confirm registrants for benefits webinars, compliance briefings, or client education sessions without building a bigger call center. What sets it apart is list discipline: the team only calls approved, permissioned, or reviewed contact lists, checks list source and consent records before any campaign launches, and will plainly tell you if a list won't support the campaign before you spend anything. That matters in the PEO world, where you're often calling on behalf of client employers and need the consent trail clean. Compliance is handled up front: AI disclosure on every call, TCPA-aligned treatment of AI voices, state quiet hours honored, and opt-outs logged and honored immediately. Outcomes route back into the CRM and scheduling tools you already run, with a named outcome report showing who confirmed, who needs follow-up, and who opted out. Pricing is straightforward: calling starts at 9 cents per connected minute, tiered by volume, with the rate locked for the campaign. Most campaigns add a one-time setup fee and a flat monthly management fee, both quoted before launch, with no per-seat charges and no platform bill.
Pros
- Fully managed: you approve the script and escalation path, the team runs the campaign
- Whole campaign quoted before launch, with the rate locked so costs don't move mid-campaign
- Strong compliance posture: AI disclosure, TCPA-aligned consent handling, state quiet hours
- Outcome reporting with disposition codes and routed follow-ups, no invented metrics
Cons
- Not self-serve software; you work with a managed service rather than clicking through a dashboard yourself
- Most campaigns include setup and monthly management fees on top of per-minute calling
- Lists without clear permission records may be declined, which can slow an urgent launch
Best for: PEOs and multi-location organizations that want a managed reminder-calling service with strict list and consent discipline, without adding call center staff or software seats.
#2 Retell AI — Contact for pricing
Retell AI is a voice AI platform that publishes a ready-made Event & Webinar Reminder template, aimed at teams that want to build and control their own calling agents. According to its website, the template is designed to remind registrants about upcoming events and webinars, confirm attendance, and handle basic inbound questions from recipients during the call. Because Retell is a platform rather than a managed service, you assemble the workflow yourself: you connect your data sources, configure the agent's script and voice, and manage the calling volume through your own account. For a PEO with technical staff or an operations team comfortable with API-driven tools, that control is a real advantage; you can tune the reminder script per event type, whether it's an open enrollment session or a compliance training webinar. The trade-off is that you own the operational details: consent management, calling windows, list quality, and escalation handling all sit on your side of the fence. Retell's strength is flexibility and speed of deployment for teams that want AI voice agents embedded in their own stack. If your PEO prefers to hand the whole campaign to someone else, a managed service will fit better, but if you want to build reminder calling in-house, Retell's template gives you a documented starting point rather than a blank page.
Pros
- Ready-made event and webinar reminder template shortens setup
- High configurability over scripts, voices, and call flows
- Two-way calls let recipients confirm or ask questions
Cons
- Self-serve platform, so consent review, list quality, and calling-window management fall on your team
- Requires technical setup rather than a turnkey managed campaign
- Pricing not published in the research, so budgeting takes a sales conversation
Best for: PEOs with in-house technical or ops teams that want to build and control their own AI reminder-calling agents.
#3 AppointmentReminders.com — Small business package from $9.95 per month
AppointmentReminders.com is a dedicated automated reminder service that sends reminders by phone call, text, or email, with a small business package covering the essentials. According to its website, you can fully customize reminder content with details like room numbers, location names, and amounts owed, and failed text messages automatically convert into calls so the reminder still lands. For a PEO running event or webinar reminders, the call channel is the relevant piece: the service supports call reminders using your verified office caller ID, drawn from an in-house library of more than 150 pre-recorded voice files, and you can record custom voice files over the phone at no extra cost. Email reminders include confirmation buttons so recipients can confirm appointments directly, and the system supports unsubscribe handling in emails. This is a straightforward, budget-friendly tool for teams that mainly need scheduled reminders against a list of contacts, and its per-message pricing model keeps costs predictable for small volumes. It's built around appointment-style reminders rather than rich webinar funnels, so you won't get registration pages, replays, or engagement analytics. But if the job is simply making sure registrants pick up the phone or confirm before the session, it covers the core workflow without a big platform commitment.
Pros
- Very low entry price at $9.95 per month
- Call fallback when texts fail keeps reminders reliable
- Custom voice recordings available at no extra cost
- One-click confirmation in email reminders
Cons
- Built for appointment reminders, not webinar funnels with registration or replay features
- No CRM-grade outcome reporting or lead routing mentioned in the research
- Pre-recorded voice approach limits conversational interaction
Best for: Small PEO teams that want simple, low-cost automated reminder calls and texts without a full platform.
#4 WebinarNinja — Free 14-day trial; paid plans start at $0.30 per attendee per month (includes CourseNinja)
WebinarNinja is a webinar platform with built-in reminder automation, which makes it a fit if your PEO wants the reminder layer attached to the webinar itself rather than run as a separate calling campaign. According to its website, the platform sends automatic reminders at 24 hours and 1 hour before each session, and delivers the replay to every registrant's inbox automatically whether they attended or not. It supports four webinar formats: live, automated, series, and hybrid, and the series feature is useful for multi-week programs like a benefits education track, where attendees register once and get access to every session with a single consistent link. Engagement tools including chat, Q&A, polls, and handouts are built for instructional delivery, and real-time analytics track attendance duration, poll responses, and click-through on in-session offers. Integrations with HubSpot, Mailchimp, ConvertKit, and Zapier connect webinar data to your CRM. The reminders here are email-based rather than phone calls, so this entry earns its place for teams that want reminder automation bundled with hosting rather than a standalone calling service. Pricing starts at $0.30 per attendee per month with a free 14-day trial, and paid plans include CourseNinja, which the company values at $1,200.
Pros
- Reminders and replay delivery built in, no separate email tool needed
- Series format simplifies multi-week programs like benefits training
- Per-attendee pricing scales with actual usage
- Per-attendee analytics on watch time and engagement
Cons
- Reminders are email-based; no outbound phone calling capability
- No on-premise or downloadable version available
- Dark mode not supported on the web
Best for: PEOs that want webinar hosting and automated email reminders in one platform for recurring training and education series.
#5 Livestorm — Free plan up to 30 attendees; Pro plan from $3.00 per attendee (credits), up to 3,000 live attendees per 4-hour session; Enterprise pricing is custom
Livestorm is a browser-based webinar platform that includes email cadences for reminders and follow-ups as part of every paid plan, making it a practical choice for PEO marketing and training teams that run regular client-facing webinars. According to its website, all paid plans include engagement tools such as polls, Q&As, live chats, and emoji reactions, along with breakout rooms, custom branding, and AI tools for repurposing content, auto-generating captions, and crafting webinar titles. It integrates with most major CRM tools, so registrant and attendee data flows into the systems your team already uses for follow-up. Livestorm's free plan supports up to 30 attendees for testing, and the Pro plan uses attendee credits starting from $3.00 per attendee, supporting four-hour sessions with up to 3,000 live attendees; hosts and moderators are free, and no-shows don't consume credits, which is a sensible pricing detail for reminder-heavy programs. The platform is recognized as a G2 Leader in the webinar category with a 4.4 out of 5 rating as of September 2026. Like WebinarNinja, its reminders are email-based, so it won't place phone calls. It earns a spot here for PEOs that want a polished, all-in-one webinar workflow with reliable automated reminder cadences and strong CRM connectivity, without managing a separate calling operation.
Pros
- Reminders and follow-up cadences included in every paid plan
- No-shows don't consume attendee credits, keeping costs fair
- Unlimited team members at no extra charge
- Strong G2 standing (4.4/5) and broad CRM integrations
Cons
- Email reminders only; no outbound phone calling
- Free plan capped at 30 attendees, mainly for testing
- Per-attendee credit pricing requires forecasting for large registration lists
Best for: PEO marketing and training teams running regular B2B webinars who want automated email reminders and CRM sync in one platform.
Reminder calls are one of the highest-leverage touches a PEO can make before an event, because the audience is already permissioned and the goal is narrow: get the right people into the room and know who didn't confirm. If you want the whole campaign handled, with list and consent review, AI disclosure on every call, and outcome reports routed back into your CRM, My AI Call Center is the clear pick, with calling from 9 cents per connected minute and the full cost quoted before launch. If your team prefers to build in-house, Retell AI's reminder template gives you a strong starting point. AppointmentReminders.com covers basic call-and-text reminders at $9.95 per month, and WebinarNinja and Livestorm bundle automated email reminders into full webinar hosting. The right choice depends on whether you want a managed campaign or a platform you run yourself. Either way, don't let registrations sit in an inbox until the event starts. Plan My Campaign with My AI Call Center: the first campaign review is free, and you'll know the full number before approving anything.
Frequently asked questions
Why do phone reminder calls outperform email reminders for PEO webinars?
Email is easy to ignore, especially when a PEO is asking client employees to attend a benefits or compliance session outside their normal workflow. A phone call demands a response in the moment: the recipient confirms, declines, or asks a question, and you get a dispositioned outcome instead of an unopened message. That's why the strongest programs pair email confirmations with a call in the final window before the event.
What makes My AI Call Center different from the other options on this list?
It's a managed service, not software. You buy campaigns that the team runs for you, with one clear goal per campaign quoted before launch. It also enforces strict list discipline: only approved, permissioned, or reviewed lists are called, consent records are checked before launch, and lists without clear permission are flagged or declined. Every call carries AI disclosure, opt-outs are honored immediately, and you get a named outcome report with disposition codes rather than vague metrics.
How much do event and webinar reminder calls cost?
It varies by provider. My AI Call Center starts at 9 cents per connected minute, tiered by volume, with the rate locked for the campaign; most campaigns add a one-time setup fee and a flat monthly management fee, both quoted before launch. AppointmentReminders.com starts at $9.95 per month for its small business package. WebinarNinja starts at $0.30 per attendee per month, and Livestorm uses attendee credits from $3.00 per attendee. Retell AI requires contacting them for pricing.
Are AI reminder calls compliant with TCPA rules?
AI-generated voices are treated as artificial voices under the TCPA, which generally means prior express consent is required before calling. My AI Call Center handles this directly: it reviews list source and consent records before any campaign launches, includes AI disclosure on every call, honors state-specific quiet hours and day restrictions, and logs opt-outs and DNC requests across all campaigns. Requirements vary by location, industry, and contact type, so clients should obtain appropriate legal guidance before launch.
Can reminder calls integrate with the CRM and scheduling tools a PEO already uses?
With My AI Call Center, yes: outcomes, bookings, and follow-up requests route back into the CRM and scheduling tools you already run, and hot leads can transfer to your team live or land in your CRM. Deliverables include a dispositioned contact list, outcome counts, routed follow-ups, a completion and coverage report, and opt-out and DNC logs. WebinarNinja and Livestorm sync webinar data to CRMs like HubSpot through native integrations.
When should reminder calls go out before a webinar?
A common structure is a multi-touch window: a day-before call to confirm attendance and a same-day call a few hours ahead for registrants who haven't confirmed. My AI Call Center's Appointment & Event Reminders and Event & Webinar Reminder campaigns support same-day, day-before, or multi-touch windows, so you can match the cadence to the event's importance and audience.
Do these tools work for PEOs calling on behalf of client employers?
Yes, but consent matters even more in that arrangement. When a PEO calls client employees or client prospects, the permission trail needs to be documented and reviewed before launch. My AI Call Center's list and consent review step is built for exactly this situation: it checks the list source and consent records, flags anything unclear, and tells you plainly if the list won't support the campaign before you spend anything.