Prepaid, per bot, per month, and each bot is one concurrent call slot. List prices for the bots that run on VICIdial:
Per-bot prices drop from 10 concurrent bots: recorded-voice fronters get 15% off at 10+ bots and 30% off at 50+, the AI fronter steps down from $70 to $30 per bot at 2,500+ bots, and AI lead gen from $150 to $65. The lowest volume price column shows the lowest per-bot price each tier reaches and the bot count where it starts; smaller fleets pay between list and that price. VoiceOI bills per bot, with no per-minute AI fee.
Add-on: the Advanced Voice Engine suits longer, more complex conversations (2 workers free (then $15/worker)). Work out your own volume price, see every add-on and compare the hosted SIP versions on the VoiceOI pricing page. For the cost of running VICIdial itself, see how much VICIdial costs.