LinkedIn applies strict connection-request and messaging limits to new or unverified profiles, which makes phone verification and account age two of the biggest factors in whether an outreach campaign gets restricted. These accounts are phone verified and built with complete, believable profile details so they clear LinkedIn's automated review for new-account activity.
Sales and B2B marketing teams use them to run parallel outreach sequences, separate campaigns by client or industry vertical, and maintain backup access to Sales Navigator-connected profiles without risking a primary company account's standing.