- Do Not Call (DNC) List
- A registry of telephone numbers whose owners have requested not to receive unsolicited telemarketing calls; both national (e.g., the US FTC's National DNC Registry) and company-internal lists must be honored.
- Telemarketing Sales Rule (TSR)
- The US FTC regulation governing outbound telemarketing, covering call-time restrictions, prohibited practices, disclosure requirements, and payment authorization rules.
- TCPA (Telephone Consumer Protection Act)
- US federal law restricting autodialed calls, prerecorded messages, and text messages to consumers without prior express written consent.
- Express Written Consent
- A consumer's clear, affirmative agreement — signed or electronically confirmed — authorizing a specific company to contact them via autodialer or prerecorded message.
- Abandoned Call
- An outbound call connected to a live consumer but disconnected by the telemarketer before a rep speaks; the FTC limits abandoned call rates to 3% of answered calls per campaign.
- Predictive Dialer
- An automated system that dials multiple numbers simultaneously and connects answered calls to available agents; subject to strict FTC and TCPA regulations.
- Opt-Out
- A consumer's request to be removed from a company's calling list; companies must honor opt-outs within 30 days under the TSR and immediately under many state laws.
- Safe Harbor
- A legal protection available to telemarketers who can demonstrate they have established and enforced written DNC procedures, trained staff, and scrubbed call lists within the required period.
- CASL (Canada's Anti-Spam Legislation)
- Canadian federal law requiring express or implied consent before commercial electronic messages — including certain telemarketing calls — and mandating opt-out mechanisms.
- Prior Business Relationship (PBR)
- An existing customer relationship that, under certain rules, permits a company to call a consumer on the DNC list for a defined period — typically 18 months from the last purchase under the TSR.
- Robocall
- An automated outbound call delivering a prerecorded message; subject to the strictest consent requirements under TCPA and equivalent rules in Canada and the UK.