- Do-Not-Call (DNC) Registry
- A national database maintained by the FTC (US), CRTC (Canada), or ICO (UK) listing consumers who have opted out of unsolicited telemarketing calls.
- TCPA (Telephone Consumer Protection Act)
- A US federal law restricting autodialed calls, pre-recorded messages, and fax marketing, with per-violation fines of $500–$1,500.
- Predictive Dialer
- Automated software that dials multiple numbers simultaneously and connects agents only when a live person answers, regulated under TCPA and equivalent laws.
- Approved Script
- The client-approved call script that the call center's agents must follow, including required disclosures, opt-out language, and prohibited representations.
- Service Level Agreement (SLA)
- Contractual performance benchmarks — such as average handle time, abandon rate, and first-call resolution — that the call center must meet or face penalties.
- Call Recording
- The capture of phone conversations for quality assurance, compliance verification, or dispute resolution, subject to one-party or two-party consent laws depending on jurisdiction.
- Lead Conversion Rate
- The percentage of dialed contacts that result in a qualified lead, sale, or appointment — a key KPI used to measure campaign performance.
- Data Processing Agreement (DPA)
- A contract (often required under GDPR) governing how a third-party processor may collect, store, and use personal data on behalf of the data controller.
- Opt-Out Mechanism
- A legally required process allowing a called party to request that no further calls be placed to their number, which the call center must honor immediately.
- Ringless Voicemail Drop
- A technique that deposits a pre-recorded message directly into a voicemail inbox without causing the phone to ring — treated as a call under TCPA by FCC guidance.
- Per-Lead / Per-Appointment Fee
- A performance-based pricing model where the call center is compensated for each qualified outcome rather than for hours worked.