Google Voice alternative

The Google Voice alternative with no per-user fees.

A shared inbox for texts and WhatsApp, Slack notifications, and no Google Workspace requirement for your team.

Get early access See how it works →

Unlimited users, one price · Shared inbox for texts and WhatsApp · Keep your number when you switch

From the team featured in
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How Google Voice & Numberline compare.

The differences that matter to a team, side by side.

Google Voice
Numberline
Pricing model
Per user, per month for teams
Unlimited users, one price
Google Workspace for teams
Required for business plans
No Google account needed
Shared messaging
Texts stay with each user
One shared team inbox
Slack
No native Slack posting
Alerts posted to Slack
WhatsApp
SMS only, no WhatsApp
WhatsApp in the inbox
Business number
Local number or port yours
Local, toll-free, or ported
Call forwarding
Forwards to your phones
Any mobile or landline
Voicemail & greetings
Greetings and transcripts
Greetings and transcripts
Ring groups & call menus
On higher business plans
Extensions on every plan
Integrations
Google tools (Calendar, Meet)
Slack, WhatsApp, AI agents

Google Voice details from Google’s published plan comparison. Google Voice also offers free and paid plans for individual US Gmail users without Workspace; team plans with per-user pricing run through Google Workspace. See Google’s subscription comparison.

Slack notifications & a shared inbox for texts & WhatsApp.

#support Slack
N
NumberlineAPP2:14 PM

New voicemail · Miguel Cruz · Ext 2 Support

New voicemail, 0:34. Open Numberline to listen, read the transcript, and call back.

N
NumberlineAPP4:02 PM

Missed call · (415) 555-0147 · Ext 2 Support

No voicemail left. Call back from the business number.

Missed-call and voicemail notifications post to the channel you choose (Grow and Max). The whole team sees who called without anyone forwarding an email.
Rosa · WhatsAppHi! Do you have any openings for a call this Thursday?
Yes, 10am or 2pm works. Want me to hold one?You · from your business number
Rosa · WhatsApp2pm please, thank you!
Texts and WhatsApp messages land in one inbox the team shares. Anyone can reply from the business number, and the thread stays with the business.

A complete business phone system, not just a second number.

Incoming business callAcme Consulting line

Business calls

Calls to your number ring the mobiles you choose with business caller ID, so everyone knows it’s work before they answer.

1Sales2Support

Greetings & extensions

Record a greeting and give callers somewhere to go: press 1 for Sales, 2 for Support, on every plan.

Owner’s mobileAssistant’s mobileFront desk landline

Team forwarding

Ring one phone or several: in order, or everyone at once. With call announce enabled, the first person to press 1 takes the call, and the other phones stop ringing.

Transcript: “Hi, I’d like a quote for the Q4 project. Could you call me back before Friday?”voicemail.mp3 · 0:34

Voicemail transcripts

Every voicemail is recorded, transcribed, and emailed on every plan, so you can read it before you call back. Grow and Max add an AI summary.

(512) 555-0148Calling as Acme Consulting
Business ID

Call back as the business

Return calls and texts from the business number in the mobile app. Your personal number stays private.

SlackWhatsApp✦ AI agents

Integrations

Post to Slack, add WhatsApp to the inbox, fire webhooks, or assign an extension to a connected AI agent from Vapi, Retell, or ElevenLabs.

Switching from Google Voice takes three steps.

1

Keep your number

Port the number your customers already know into Numberline, or pick a new local or toll-free one. How porting works →

2

Prepare the transfer

Have your Google Voice account details and the number’s transfer PIN ready. Keep Google Voice active until the port completes; cancelling early can release the number.

3

Set up your team

Add forwarding to each person’s mobile, record a greeting with extensions, and invite the team to the shared inbox. No Google account required for anyone.

Join early access and we’ll walk you through it →

Questions about switching from Google Voice

Is Google Voice bad?
No. Google Voice is a solid second number for one person. Google offers paid plans for individual US Gmail users and per-user plans for teams through Google Workspace, with ring groups and an auto attendant on the higher Workspace plans. What it does not do is share texts across a team, post to Slack, or handle WhatsApp. Numberline covers those without per-user fees.
Can I move my number from Google Voice?
Yes. Numberline is designed to support porting the business number your customers already know. Keep Google Voice active until the port completes; cancelling early can release the number. See how porting works.
Do you charge per user?
No. Users are unlimited on every plan. Add teammates, assistants, and contractors without another seat fee. Plan limits are on the pricing page.
Do I need a Google account or Google Workspace?
No. Numberline is its own phone system. Sign in with a work email, invite your team, and keep using whatever email and calendar tools you already have.
Do I need new phones or equipment?
No. Numberline forwards calls to the mobile phones your team already carries, or to an existing business landline. There is nothing to buy or install.

Switch to a phone system that doesn’t charge per user.

Bring your number, add the whole team under one price, and connect Slack and WhatsApp when you need them.

Get early access
No per-user pricing No Google account required Keep your number