
Google Voice is a cloud‑based telephony and messaging service by Google (part of Alphabet). It provides users a single phone number to manage calls, texts, and voicemails across devices. Initially popular with consumers, it’s now more geared toward business via deeper integration with Workspace.
Roots in GrandCentral: The service began as GrandCentral in 2005, founded by Craig Walker and Vincent Paquet. Google acquired it in July 2007 for around US $95 million.
Relaunch as Google Voice: After a secret development period, Google Voice launched publicly on March 11, 2009, retaining core GrandCentral features and adding voicemail transcription, SMS, call forwarding, greetings customization, etc.
Gizmo5 acquisition: In November 2009, Google bought Gizmo5 (reported ~$30 million) to bolster VoIP capabilities.
Google Voice itself has not raised outside funding as it is a product under Google LLC, which is part of Alphabet Inc.
Alphabet’s valuation (as of 2024–2025): Over $2 trillion market cap.
Google Voice does not operate as a standalone company with independent funding or valuation.
Free calls (PC‑to‑PC globally; PC‑to‑US/Canada) and low-cost international calling
Single US phone number with multi‑device forwarding
Voicemail transcriptions, SMS (US/Canada), call screening & recording, personalized greetings
Tiers: Starter ($10/user), Standard ($20), Premier ($30)
2023–2024: Minor updates—Salesforce integration (2024), multiple image attachments in Android (Dec 2024)
May 2025 update:
Material Design (M3) in-call UI refresh
Three-way calling (paid tiers)
As a legacy Google product:
Maintains a user-first ethos: free international calls, voicemail transcription, cross-device access
Strategic shift toward Workspace reflects profitability, enterprise reliability, and incremental enterprise-grade updates.
Consumer: Initially millions of US users; core fans value “one number for life,” free voicemail transcription, customizable greetings
Community feedback (Reddit) shows delight in even incremental updates:

Google Voice
By Google