A solo agent can’t answer every call at 9pm on a Tuesday. What matters legally isn’t whether coverage exists — it’s what kind of message goes back, and under which federal rule that message has to be judged.
Key takeaways
CASL’s implied-consent rule turns partly on inquiries. The Act states that implied consent exists where there has been “an inquiry or application, within the six-month period immediately before the day on which the message was sent.” A missed call from a prospect is, in substance, an inquiry — someone reached out wanting a response. That means an automated text or email sent back to confirm receipt and set expectations for a callback generally has an implied-consent basis under CASL for that six-month window, without needing separate, upfront express consent for the reply itself. What that window doesn’t cover is everything after — a marketing newsletter added to that same contact six months and one day later is a different, unconsented message.
The CRTC’s Unsolicited Telecommunications Rules define an Automatic Dialing-Announcing Device, or ADAD, as equipment used to convey a pre-recorded or synthesized voice message to a telecommunications number. The operative rule for any AI-voice tool making outbound calls is direct: under the CRTC’s rule, a telemarketer may not initiate a telemarketing telecommunication via an ADAD unless express consent has been provided by the consumer. An outbound call placed by a system using synthesized speech to solicit or promote services meets that definition on its plain wording — existing-relationship status or National DNCL registration doesn’t substitute for the express consent an ADAD call specifically requires.
CASL itself carves live conversation out of its commercial-electronic-message rules entirely: the Act states that its core prohibition “does not apply to a commercial electronic message… that is, in whole or in part, an interactive two-way voice communication between individuals.” A genuine live conversation — human-to-human, or arguably a real-time, responsive AI voice exchange rather than a played announcement — sits outside CASL’s messaging rules altogether; the CRTC’s telemarketing and ADAD rules are the ones that would govern a live or voice-based outbound call instead. Where the two federal sources genuinely stop giving a clear answer is the narrower question of whether a real-time, dynamically-generated AI voice response — something more interactive than a played announcement, but still built on synthesized speech — falls inside or outside the ADAD definition’s “synthesized voice message” wording. Neither source resolves that distinction explicitly; treat any outbound AI-voice callback as ADAD-governed unless and until a source states otherwise, rather than assuming interactivity alone moves it outside the rule.
The CRTC’s hour restriction for unsolicited ADAD calls runs from 9:00 a.m. to 9:30 p.m. on weekdays and 10:00 a.m. to 6:00 p.m. on weekends, and the rule specifies whose day matters: per the CRTC’s own rules, the permitted calling hours are measured on the clock of the person receiving the call, not the caller’s own. A solo agent whose after-hours system reaches a lead in a different time zone is bound by the recipient’s local clock, not the agent’s own end-of-day — a detail an automated system needs to actually know about the number it’s calling, not assume from the agent’s own location.
The CRTC’s sector-specific real estate guidance is explicit that using a vendor changes nothing about who answers for a violation: the brokerage is liable for the actions of its agents and any lead generators used by its agents, and a brokerage “could be held responsible” for a lead generator’s non-compliance even where the vendor’s own contract claims full compliance. An AI after-hours platform is functionally a vendor in this analysis — choosing one on the strength of its own compliance claims does not relieve the agent or brokerage of responsibility for how it actually behaves. See approaching a for-sale-by-owner for how the same liability rule plays out on the outbound-prospecting side.
The practical split
A text or email confirming a missed call and proposing a callback time: generally covered by the six-month implied-consent window CASL grants for an inquiry. An automated voice call placing an outbound follow-up using synthesized speech: governed by the CRTC’s ADAD rules, needing express consent regardless of the inquiry. The channel the reply travels through, not the fact that a call was missed, is what decides which federal rule applies.
Falling inside CASL’s implied-consent window covers the reply’s legality, not its form. The Act separately requires a commercial electronic message to “set out an unsubscribe mechanism in accordance with subsection 11(1)”, and that mechanism must be “free of charge to the recipient” and usable without a forced login. An auto-text that nails the consent question but skips the opt-out link still fails CASL’s separate content rule.
A missed call functions as an inquiry, which gives CASL implied consent for a follow-up commercial electronic message within a six-month window. A short acknowledgment sent immediately after the missed call sits well within that window.
A voicemail is itself an inquiry in substance, and the same six-month implied-consent logic under CASL’s s.10(10) applies to a text reply. It does not, on its own, establish consent for an ADAD-style automated voice callback, which is governed by the CRTC’s separate express-consent rule for telemarketing telecommunications.
At that point the implied-consent window from that specific inquiry has closed. A fresh inquiry, an existing separate business relationship within its own window, or express consent would be needed to send a commercial electronic message at that point.
The published hours in the Unsolicited Telecommunications Rules attach to the telemarketing telecommunication itself, measured on the recipient’s own clock, rather than turning on whether the person happens to be expecting the call — treat the restriction as applying regardless of anticipation unless a source states otherwise.
A short call can help you design after-hours coverage that doesn’t outrun what it’s legally allowed to do.
