Callbook AI Bloghttps://www.callbook.ai/blog/Research, experiments, and field lessons from Callbook AI on AI collections, automated calls, customer contact, and conversational intelligence.enSun, 16 Aug 2026 00:00:00 GMTHow we cut AI call costs by 60% with TinyMLhttps://www.callbook.ai/blog/cut-ai-call-costs-tinyml/https://www.callbook.ai/blog/cut-ai-call-costs-tinyml/The technical story of how Callbook AI reduced automated calling costs by detecting voicemail locally with a TinyML model.Mon, 30 Jun 2025 20:02:20 GMTsupport@callbook.ai (Diego Avellaneda)3 lessons from one million AI callshttps://www.callbook.ai/blog/lessons-from-one-million-ai-calls/https://www.callbook.ai/blog/lessons-from-one-million-ai-calls/Three operational lessons from more than one million AI calls across contact strategy, contextual transfers, and segmentation.Thu, 17 Apr 2025 20:58:56 GMTsupport@callbook.ai (Diego Avellaneda)How to make AI calls feel more humanhttps://www.callbook.ai/blog/make-ai-calls-feel-human/https://www.callbook.ai/blog/make-ai-calls-feel-human/Practical principles for designing AI voice conversations that feel clear, natural, and useful.Mon, 14 Apr 2025 21:39:00 GMTsupport@callbook.ai (Diego Avellaneda)The most effective opening for cold callshttps://www.callbook.ai/blog/best-cold-call-opening/https://www.callbook.ai/blog/best-cold-call-opening/Results from a Callbook AI experiment with 500 calls and five opening lines to identify which greeting retained attention best.Wed, 25 Jun 2025 00:00:00 GMTsupport@callbook.ai (Callbook AI team)