Glossary
Do not call (DNC)
The short answer
Registries and internal lists of numbers that must not receive unsolicited sales calls.
National registries in the United States, Canada and elsewhere primarily protect consumers, with varying treatment of business-to-business calling. Internal do-not-call obligations apply regardless of registry status.
The safest operating rule is simple: honour every request immediately, record it, and never let the number back into circulation.
Compliance is a process, not a one-off scrub. It depends on suppression being applied at source on every future list.
How we handle it
Opt-out requests are honoured within one business day and are permanently suppressed across future sourcing.
Related terms
Keep reading
Opt out
A person's request to stop being contacted and to have their record removed.
Suppression list
Records you never want contacted, including customers, live opportunities, partners and opt-outs.
B2B outreach compliance
The rules governing how business contact data may be collected, used and stored for outreach.