Clear and Unambiguous Opt-in Mechanisms

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Key takeaway on Legitimate Interest: While legally possible, it requires a robust LIA and is subject to interpretation by data protection authorities. Consent is always the safer and more transparent option for direct marketing phone calls.

Best Practices for GDPR-Compliant Phone Lead Generation
Transparency is Paramount:
Privacy Policy: Have a clear, accessible, and easy-to-understand privacy policy on your website that details how you collect phone numbers, why, what lawful basis you rely on, how long you store them, and individuals' rights (access, rectification, erasure, objection).
Point of Collection: At every point where you collect a phone number, clearly state the purpose and link to your privacy policy.
Unchecked Boxes: Consent checkboxes must be unchecked by default.
Granular Consent: If you want to use the phone number for new zealand mobile number list different purposes (e.g., transactional SMS vs. promotional calls), provide separate consent options for each.
Specific Language: Use plain language. Avoid legal jargon.
Data Minimization: Only collect the phone number if it is genuinely necessary for your stated purpose. Don't ask for a phone number for a free e-book if an email address suffices.
Do Not Call (DNC) List Scrubbing:
National DNC: Regularly (at least every 28 days for the UK's TPS/CTPS, or as required by other EU countries' equivalents) scrub your phone lists against national DNC registries.
Internal DNC: Maintain and consistently update your own internal DNC list based on opt-out requests.
Robust Consent Records:
Implement a system (CRM, consent management platform) to record:
The exact wording of the consent statement.
The date and time consent was given.
The method of consent (e.g., "website form IP: [IP address]", "verbal consent on recorded call ID: [ID]").
The source of the lead.
This is your proof in case of an audit or complaint.