Compare calling engines

One business brief. Separate provider profiles. Evidence from each test call.

1. Choose a provider profile

Lead nameRequirement / interestBusiness instructionsFirst greetingConfirmed business facts

VoiceSpeaking pace

Rumik uses a description-based pacing target; it is not an exact speed multiplier.

Reuse a previously generated matching greetingParticipant mobile numbers

Calls launch together, up to three active lab calls. Provider account limits still apply across production and lab.

No automatic retries. No WhatsApp sends. No scheduled callbacks.

Participant	Profile	Status	Seconds	TTS characters submitted	Actions

Usage and server latency are measured evidence. Audio received is not a provider invoice. Verify billing before setting customer prices.