Ringover offers parallel dialing, with two concurrent calls through an add-on according to its French documentation. Sonik was built around parallel dialing from day one: several prospects dialed at once, voicemails and no-answers skipped, and the rep connected the instant a human picks up. Customers measured up to 10 conversations per hour.

Ringover's AI prepares calls from your historical conversations and connected CRM context, which helps once a relationship exists. On a cold call there is no history yet. Sonik researches every prospect before the dial from professional history, hiring signals, annual reports and recent company communications, so reps open with context instead of a script.

Both tools can run voicemail campaigns. Sonik adds referral intelligence: when a prospect mentions a colleague, Sonik identifies that person, finds their phone number and creates the contact in your CRM, doubling conversion on referrals. No equivalent end-to-end workflow is publicly documented by Ringover.

Sonik sources prospects from website visits, in-call referrals, competitor engagement and hiring signals, and replaces wrong numbers, at €0.50 per contact found. Every team gets a dedicated cold-call training session with a human expert, individual ratings and industry insights from a CSM, where Ringover relies on AI simulations and Empower analytics. And if a licence goes a full month without usage, its monthly fee is credited back toward Data and Signals or Dialing as a Service.