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Qualify voicemail leads with Twilio, Google Gemini, Gmail and Google Sheets

by Hassanadapted from n8n official workflow galleryUpdated Aug 2026
RequiresCCodeGmailGmailGoogle GeminiGoogle SheetsGoogle SheetsSlackTwilioTwilio
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WeWebhook: Voicemail ReceivedWebhook: Voicem…CoParse AI OutputIfIs Email Available?Is Email Availa…Send Acknowledgment EmailSend Acknowledg…Send Acknowledgment SMSSend Acknowledg…Log to Voicemail Lead SheetLog to Voicemai…IfIs Lead Hot?Notify Agent — Priority LeadNotify Agent — …Update Row: Agent NotifiedUpdate Row: Age…Notify Agent via SlackNotify Agent vi…Extract, Qualify & Draft ResponseExtract, Qualif…IfIs Valid Voicemail?Is Valid Voicem…SeExtract TranscriptExtract Transcr…12345678910111213
1/5
STEPS · 13
Starts on an incoming request

Quick overview When a buyer or seller leaves a voicemail, this workflow transcribes it automatically, qualifies their intent using Gemini AI, sends an instant SMS acknowledgment, and alerts the agent for Hot leads — turning every missed call into a qualified lead within seconds. How it works Receives a POST webhook from Twilio when a voicemail recording and transcription are completed. Validates the voicemail by checking that the recording is completed, the transcription is completed, and the call duration is longer than 5 seconds. Extracts the transcript, caller phone number, call SID, duration, and recording URL, then sends the transcript to Google Gemini to return structured lead details, a Hot/Warm/Cold score, and draft SMS/email replies. Parses and sanitizes the Gemini JSON output, applies fallbacks if parsing fails, optionally appends a Google Calendar booking link for Hot leads, and builds an agent-ready HTML summary including the transcript and recording link. Sends an acknowledgment SMS to the caller via Twilio, and sends an acknowledgment email via Gmail only when a caller email address is available.

Tags

n8nreference-onlygmailgoogle-geminigoogle-sheetsslacktwilio
Connects
CCodegmailGmailGoogle GeminisheetsGoogle SheetsSlacktwilioTwilio
CategoryAI Automation
Triggermanual
Complexitycomplex
Nodes13
AddedJul 14, 2026

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