My company is a business to business company. We provide expense management for telephone communications for business customers. We collect business email, business telephone and contact names of our customer contact. Are business email & business telephone information relevant under GDPR as this is related to business activities? Customer contact name is relevant, correct?
Except for generic email addresses such as firstname.lastname@example.org, if the email addresses can be used to identify or single out an individual, they must be considered and treated as personal data. The same goes for telephone numbers, especially if they are mobile numbers.