If your advisory firm bills planning fees, retainers, or quarterly invoices, you already know the pattern: the email reminder goes out, gets ignored, and nobody on the team wants to be the person who calls a long-time client about money. Yet a live phone conversation is still the most reliable way to find out whether an invoice was received, whether a payment is coming, and whether there's a dispute you need to know about. According to Atradius, 43% of credit-based B2B sales in the US are overdue, and advisory firms are not immune. The good news is that you no longer have to staff those calls yourself. AI-powered reminder calling has matured quickly, and a handful of platforms now handle the full loop: the call, the promise-to-pay date, the logged outcome, and the handoff to your team when a person needs to step in. We compared five options that genuinely fit this use case in 2026, from managed campaign services to AI voice agents inside full phone systems. Here's how they stack up.
#1 My AI Call Center — Calling starts at 9¢ per connected minute, tiered by volume. Most campaigns add a one-time setup and a flat monthly management fee, quoted before launch. First campaign review is free.
My AI Call Center takes a different approach from every other option on this list: it's a done-for-you managed outbound calling service, not software you configure yourself. You buy campaigns that their team runs for you, and each campaign is scoped around one clear goal before launch. For payment and invoice reminders, that means a structured sequence of calls a few days before an invoice is due, plus follow-up calls if it goes unpaid. You don't write the dialing logic or tune the voice model; you approve the script, the escalation path, and the calling windows, and their team handles execution. Owned by AIQ Labs and based in Halifax, Nova Scotia, with a US operating base in Austin, Texas, the service is built for multi-location organizations with 1 to 200+ staff, which fits most advisory firms with a few offices and a growing client book. What makes it our Editor's Choice for advisory firms is the list and consent discipline. Every campaign runs against approved, permissioned, or reviewed contact lists only, never indiscriminate cold calling. Before anything launches, their team reviews the list source and consent records, and they'll tell you plainly if the list won't support the campaign, before you spend anything. For a regulated industry like investment advisory, that matters. AI-generated voices are treated as artificial voices under the TCPA, so prior express consent is required, AI disclosure happens on every call, keyword opt-outs like STOP and REVOKE are honored immediately, and DNC requests are carried into your records. Nothing launches until you approve the script, disclosure, and escalation path. Outcomes route back into the CRM and scheduling tools you already run. Each campaign ends with a named outcome report: disposition codes (confirmed, qualified, renewed, opted out, no answer), per-call notes, routed follow-up requests, a completion and coverage report, and opt-out and DNC logs. The reporting philosophy is simple: they report what actually happened, and they never invent client logos, testimonials, metrics, or ratings. 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 and a flat monthly management fee, both quoted before launch, with no per-seat charges and no minimums you didn't choose. The first campaign review is free.
Pros
- Done-for-you service: you approve the plan, they run the campaign
- Consent and list review happens before you spend anything
- Transparent, locked pricing with no per-seat charges
- Compliance-forward: AI disclosure, opt-out handling, and DNC logs on every campaign
- Outcomes route into your existing CRM rather than a new system
Cons
- It's a managed service, so firms wanting self-serve software control won't find that here
- You need approved, permissioned, or reviewed lists; bought lists without consent records are usually declined
- Campaign requirements vary by location and industry, so firms are responsible for legal guidance before launch
Best for: Advisory firms that want reminder calls handled end-to-end without building or running software, especially firms that care about consent records and clean compliance documentation.
#2 CloudTalk — CloudTalk advertises a free trial (50 AI minutes, 14 days, no card required) on their payment reminder page. Contact for ongoing pricing.
CloudTalk offers an AI voice agent for payment reminders inside a broader business phone system, which makes it a natural fit for firms that want reminder calling alongside their existing calling infrastructure. According to their website, the AI agent calls customers before and after the due date, states the balance, sends the customer to your payment link, portal, or IVR, and logs the outcome in your CRM. Disputes and payment plan requests go to your team, and the agent can be set to introduce itself as an AI assistant in its first sentence to meet disclosure rules. The platform supports 70+ languages and calls from local numbers in 160+ countries, and it connects natively to HubSpot, Salesforce, Pipedrive, Zoho, and 100+ other systems. CloudTalk says most teams are live in one to two weeks with a solutions consultant building the reminder flow with them, no code required. On compliance, their site lists GDPR, ISO 27001, SOC 2, and CCPA, with 99.999% uptime, and card details stay off the call because customers are directed to a payment link or portal. For a firm that already runs its phones on CloudTalk, adding reminder calls is a small step rather than a new procurement exercise. CloudTalk is best understood as a full phone system with a collections-capable AI agent inside it, rather than a collections specialist. That's a real strength if you want one system for inbound and outbound, and a reasonable tradeoff if you want a dedicated AR tool.
Pros
- Reminder calling integrated with your team's existing phone numbers and system
- Card details stay off the call; customers pay via your link, portal, or IVR
- Broad CRM and integrations coverage
- Configurable AI disclosure and calling rules
Cons
- It's a full phone system first; firms only wanting reminder calls may pay for capabilities they don't use
- You configure and manage the agent yourself, unlike a fully managed service
- Ongoing pricing isn't published on the payment reminder page
Best for: Firms that want AI payment reminder calls inside the same phone system their team already uses, with disputes and payment plans handed to staff on the same platform.
#3 Sono — Sono's site describes a flat monthly fee plus usage. Contact for pricing.
Sono focuses narrowly on the window between an invoice going overdue and the account being handed to collections. According to their site, their AI calls every overdue account inside that window, confirms the customer knows what's outstanding, clears whatever is blocking payment, and agrees a date the customer commits to. The pitch is speed: Sono's 2026 European consumer-credit calling programme measured a 43.6% commitment rate at day 3 versus 11.7% at day 65, and a cost per commitment of 1.46 euro at day 3 versus 5.02 euro at day 65. Those are their own measured figures, not an audited number, but the direction of the finding matches what most AR teams already know from experience. The workflow is straightforward. Sono reads your overdue ledger from your billing, ERP, or AR platform (or a scheduled file), calls on the cadence you configure, clears blockers like a wrong reference or a missing invoice, and writes everything back: a confirmation SMS to the customer, plus disposition, promised date, and transcript to your system. Their site notes the agent identifies as an AI assistant, honors calling-hour rules and do-not-call flags, and stores a transcript and recording of every call against the account. For advisory firms, Sono is a strong candidate if your receivables problem is concentrated in the early overdue window and you want every account called regardless of balance. The measured numbers come from European consumer credit, so treat them as directional rather than a guarantee for an advisory client book.
Pros
- Whole-book coverage, not just the largest balances
- Early contact: disputes and blockers surface at day 3 instead of day 60
- Auditable by default, with transcripts and recordings per call
- Cost per commitment measured at day 3 was 1.46 euro on their 2026 programme
Cons
- Their published metrics come from a European consumer-credit programme, so results on an advisory book will vary
- Focused on the pre-collections window; it doesn't replace your accounting or billing system
- Pricing isn't published
Best for: Firms that want full coverage of the overdue ledger in the first days past due, before accounts age or reach collections.
#4 InvoicifyAI — Included in the Pro plan at $149 USD/month (400 shared AI voice minutes, then $0.35/min overage) and the Business plan. Starter is $99 USD/month but does not include the Invoice Reminder Agent.
InvoicifyAI's Invoice Reminder Agent is aimed at service businesses whose biggest problem isn't sending the first reminder, it's getting a real response after emails have been ignored. According to their site, the agent calls customers about overdue invoices, confirms whether the invoice was received, asks whether anything is blocking payment, captures promise-to-pay dates, and logs outcomes back into the customer record. A typical setup is a four-touch cadence: day 1 reminder, day 7 follow-up, day 14 escalation, and day 30 final notice, with follow-up auto-scheduled if a promised payment doesn't arrive. The agent handles the common scenarios: a customer who says they never received the invoice gets a resend and a scheduled retry; a dispute gets logged and flagged for human review; a payment plan request gets captured and routed to your team. Their site positions the AI and human split clearly: the agent does first-touch reminders, promise-to-pay capture, voicemail drops, and outcome logging, while your team handles complex disputes, high-value account management, and write-off decisions. The Invoice Reminder Agent is included in InvoicifyAI's Pro plan at $149 USD per month (with 400 shared AI voice minutes and $0.35/min overage) and their Business plan; the Starter plan at $99 USD per month includes the AI receptionist and call-for-you features but not the reminder agent. That makes it one of the few options here with clear published pricing, which smaller advisory firms will appreciate.
Pros
- Clear, published pricing
- Structured cadence with automatic follow-ups on broken promises
- Clean handoff model between AI and your team
- Included in a broader plan with receptionist and invoicing features
Cons
- Self-serve software: you configure and monitor it yourself
- Voice minutes are shared across features, so heavy reminder volumes can hit overage rates
- Reminder agent requires the mid-tier plan, not the entry plan
Best for: Small firms and solo advisors that want self-serve AI reminder calls with published pricing and CRM-ready outcome logging.
#5 Chaser — Contact for pricing. Chaser offers a free trial.
Chaser approaches reminder calls from the accounts receivable side rather than the AI voice side. Its Auto-call feature schedules automated phone calls that deliver pre-scripted payment reminders, built with text-to-speech from templates you write, personalized to each recipient and placed on the times and dates you choose. According to their site, the goal is to take the most time-consuming part of credit control, the phone call, and make it happen instantly instead of waiting until someone clears their to-do list. Chaser also supports a multi-channel approach, so you can combine call, SMS, and email reminders into one polite sequence rather than bombarding customers on a single channel. Chaser integrates with accounting software, which is where its strength lies for a firm that already invoices in Xero or QuickBooks. Reminders can be triggered based on invoice due dates or payment delays, you can disable automated follow-ups for specific clients, and you can set multiple follow-ups for a single invoice. Their site reports over 10,000 users worldwide, and customer testimonials on the page describe improvements in debtor days after adopting the platform. The honest limitation for this list: Chaser's calls are pre-scripted, text-to-speech broadcasts rather than two-way AI conversations. A recipient can't ask a question, dispute a line item, or negotiate a date with the call itself, the way they can with the conversational agents higher on this list. For firms that want consistent, polite, scheduled reminder calls layered on top of email and SMS, that's a reasonable tradeoff. For firms that want the call to actually resolve the blocker, it's worth comparing carefully.
Pros
- Multi-channel reminders (call, SMS, email) in one system
- Deep accounting software integration with due-date triggers
- Granular controls: per-client opt-outs and multiple follow-ups per invoice
- Established user base with testimonials on debtor-day improvements
Cons
- Calls are pre-scripted broadcasts, not two-way conversations, so blockers and disputes can't be resolved on the call itself
- Requires writing and maintaining call templates yourself
- Pricing isn't published on the feature page
Best for: Firms already invoicing in Xero or QuickBooks that want scheduled, pre-scripted reminder calls as part of a multi-channel AR sequence.
The right choice depends on how much of the reminder work you want to own. If your advisory firm wants the calls handled end-to-end, with consent records checked before anything launches and outcomes routed back into your CRM, My AI Call Center's managed campaigns are the clearest fit: one clear goal per campaign, a script and escalation path you approve, and calling from 9 cents per connected minute with the rate locked before launch. If you'd rather run the software yourself, CloudTalk fits firms that want reminder calling inside their existing phone system, InvoicifyAI offers published pricing and a structured cadence for smaller teams, and Sono covers the early overdue window across the whole ledger. Chaser works well if your reminders are mostly email and SMS today and you want scheduled, pre-scripted calls added to the mix. Whichever direction you take, the underlying point from the research holds up: a phone conversation in the first days after an invoice goes overdue finds the blockers and gets the commitment dates that email never will. If you'd like to see what a managed payment reminder campaign would look like for your firm, you can plan your campaign at myaicallcenter.app or email [email protected]. The first campaign review is free, and you'll know the full number before you approve anything.
Frequently asked questions
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 their team runs for you, scoped around one clear goal and quoted before launch. Instead of configuring a voice agent yourself, you approve the script, disclosure, opt-out handling, and escalation path, and their team executes. It also reviews your list source and consent records before any campaign launches, and will tell you plainly if a list won't support the campaign before you spend anything. For a regulated industry like investment advisory, that combination of human oversight and consent discipline is hard to get from a self-serve tool.
How much do AI payment reminder calls cost?
It varies by model. My AI Call Center charges from 9 cents per connected minute, tiered by volume, plus a one-time campaign setup and a flat monthly management fee, all quoted before launch. InvoicifyAI includes its Invoice Reminder Agent in a $149 USD/month plan with 400 shared AI voice minutes. CloudTalk offers a free trial (50 AI minutes, 14 days) but publishes ongoing pricing only through sales. Sono and Chaser are both quote-based. If a vendor hasn't published a number, ask for the full 12-month cost including overages and setup before you commit.
Are AI reminder calls compliant for investment advisory firms?
The FCC has confirmed that AI-generated voices are "artificial" under the TCPA, so a reminder call placed by one requires prior express consent. Beyond that, requirements vary by location, industry, contact type, consent status, and technology. My AI Call Center treats AI voices as artificial voices under the TCPA, includes AI disclosure on every call, honors keyword opt-outs like STOP and REVOKE immediately, and carries DNC requests across campaigns. CloudTalk lets you configure AI disclosure in the agent's first sentence. Whatever platform you choose, your firm's compliance professionals should review the script, consent basis, and calling windows before launch; vendors don't transfer your legal exposure.
Why do phone calls work better than email reminders for overdue invoices?
A live conversation is harder to ignore than an email, and it does three things email can't: it confirms the invoice actually reached the right person, it surfaces the blocker (a wrong amount, a missing approval, a dispute) in real time instead of over days of email tag, and it gets a specific commitment with a date and amount. Sono's 2026 programme measured a 43.6% commitment rate at day 3 versus 11.7% at day 65, with the same conversation costing 3.4 times more to win at day 65. Those are vendor-measured numbers from European consumer credit, so treat them as directional, but the pattern is consistent across the research: early contact is the cheapest lever in receivables.
Should an advisory firm use a specialist billing tool instead of reminder calls?
They solve different problems. Specialist billing tools like AdvicePay handle planning-fee invoicing and subscription billing, and accounting platforms like QuickBooks or Xero send standard reminder emails. Research on advisor payment tools makes the point well: the invoicing system should own the receivable, and the CRM (Redtail, Wealthbox) should stay as relationship context. Reminder calls slot in as the channel that gets a response when the emails have gone unanswered. Many firms run both: the billing system sends the routine notices, and a calling campaign covers the accounts that don't respond.
What should we test before launching an automated reminder call campaign?
Test the hard cases, not the happy path. Run a draft invoice, an approved invoice, an overdue invoice, a partial payment, a disputed amount, a duplicate event, and a write-off through the workflow before go-live. Confirm what stops a reminder: a confirmed payment, a credible payment promise, or an active dispute should all pause the sequence. Check that opt-outs are logged and honored immediately, that calling windows respect state quiet-hour rules, and that outcomes land in your CRM with a clear disposition. My AI Call Center's process builds this in as a pre-launch campaign and consent review, with nothing going live until you approve the script and escalation path.