B2B voice + ops
Velstack answers business phone lines and completes operational work — book, reschedule, cancel — on your calendars and job systems. Built for after-hours and overflow. Sold on recovered bookings.
The problem
Operators lose jobs when humans miss calls, drop estimate follow-ups, or can’t staff phones. Thin “AI receptionist” products converse; they don’t reliably write into calendars and job systems.
Velstack treats that as a systems problem: deterministic ops policy, speech, connectors, and evals — with language models only where language is required.
Two products, one substrate
Out of the box
Voice+ops that books jobs with minimal setup. Platform-managed telephony. Aimed at owners, GMs, and directors of ops.
Bring your own
Policy engine, connectors, evals, and speech runtime as a platform. Customer-configured telephony (BYO Twilio/Telnyx or your media plane).
How it works
After-hours or overflow routes to Velstack. Low-latency duplex voice with barge-in.
Hours, catalog, deposits, and dispatch rules are versioned policy. The model proposes; policy commits.
Book, reschedule, or cancel on the customer’s calendar / job board. Confirm by SMS when needed.
Jobs and recovered revenue land in an attribution ledger. Evals gate prompt and model changes.
Pricing sketch
Working sketch for multi-location and high-call-volume service businesses: roughly $500–$2,000 per location / month, plus an outcome layer (per booked job or a small percentage of AI-attributed booked revenue).
Pilots are typically ~30 days, after-hours only, with success tied to booking rate and CSAT thresholds. Exact commercial terms are set with each design partner — this is not a public price list.
Get in touch
If you’re an owner or ops lead losing jobs after hours, or a technical team evaluating voice+ops infrastructure, reach out. No fake case studies — early stage, building in public with operators who feel the pain.