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Inspiration
For independent contractors and small trade businesses, a phone line is both a lifeline and a liability. Inbound calls are a chaotic mix of high-value homeowners, general contractors needing bid compliance packets, and aggressive telemarketers.
Unsolicited lead-generation solicitors don't just call once—they run aggressive predictive dialers hitting a line 4 to 6 times in rapid succession. Instead of losing hours to phone screening or letting valid estimates slip away, CallSmith AI turns inbound telephony into an autonomous triage, lead-conversion, and legal defense engine.
What It Does
CallSmith AI acts as an autonomous front-desk commander that classifies every incoming call in real time and executes dynamic operational branches:
- Homeowner Lead Qualification & VIP Fast-Track: Detects residential project inquiries, logs customer scope, and automatically sends an SMS asking for project photos. When the homeowner replies with images, CallSmith AI elevates the lead directly to a dedicated
#vip-leadsDiscord channel for priority estimating. - General Contractor (GC) Compliance Fast-Path: Identifies commercial project inquiries and general contractors instantly. The agent clarifies required vendor paperwork, collects the estimator's email address, and queues an automated compliance packet dispatch (Certificate of Insurance / COI, W-9, and trade licenses).
- Spam Stalling & Dynamic DNC Enforcement: Intercepts spam solicitors and deploys Gemini to hold convincing, dynamic conversations—wasting the telemarketer's call-center bandwidth instead of yours.
- Repeat Offender Evidence Locker (TCPA Case Builder): If the caller ignores Do Not Call (DNC) status or calls back across rapid dialing bursts, CallSmith records audio transcripts, timestamps, and caller identities. It automatically compiles a structured evidence dossier for statutory TCPA claims ($500 to $1,500 per willful violation).
How We Built It
- Intelligence & Orchestration: Built with the Google GenAI SDK using Gemini for real-time intent classification, context steering, and transcript-to-JSON parsing.
- Telephony & Anti-Spoofing: Powered by Twilio with cryptographic STIR/SHAKEN verification to detect and neutralize local neighbor spoofing before calls reach the honeypot pipeline.
- Voice Pipeline: Integrated with Google Cloud Text-to-Speech API to deliver low-latency bidirectional conversational responses.
- Backend Infrastructure: Packaged in Python and containerized for Google Cloud Run, handling asynchronous webhook intake, schema validation, and event dispatching.
Challenges We Ran Into
- Structuring dynamic multi-path branching that switches instantly between cordial customer intake, professional GC onboarding, and adversarial telemarketer stalling.
- Normalizing messy conversational audio into strictly typed JSON schemas to ensure evidence dossiers meet legal logging standards.
Accomplishments That We're Proud Of
- Turned an inbound spam liability into an automated asset: high-priority residential leads get fast-tracked, commercial compliance friction is eliminated, and repeat telemarketers build their own legal paper trail with zero manual effort.
What's Next for CallSmith AI
Adding automated small-claims demand packet generation and direct integration with municipal permit lookup APIs.
Are you a trade contractor or field business tired of robocalls and missed estimates? Join the closed pilot waitlist: https://forms.gle/J7FmGQPydcQF8r8y9
