One flat monthly price with unlimited users. A greeting and extensions ring your mobile and your team’s phones. No Google Workspace needed.
Unlimited users · Shared inbox · Keep your number
Google Voice fits one person who wants a second number, or a team already on Google Workspace that pays per user. Numberline fits a business where several people answer calls and texts, with unlimited users, a greeting and extensions, and a shared inbox for texts and WhatsApp.
Source: Google’s Voice subscription comparison (checked October 23, 2026). Google Voice also offers plans for individual US Gmail users; team plans run through Google Workspace.
Connect Slack, and voicemail notifications post to the channel you choose. Texts and WhatsApp messages land in one inbox. Anyone on the team can reply from the business number.
Calls to your number ring the mobiles you choose with business caller ID, so everyone knows it’s work before they answer.
Record a greeting and give callers somewhere to go: press 1 for Sales, 2 for Support.
Ring one phone or several, in order or all at once. With call announce, the first person to press 1 takes the call.
Every voicemail is recorded, transcribed, summarized, and emailed, so you can read it before you call back.
Return calls and texts from the business number in the mobile app. Your personal number stays private.
Get notifications in Slack, add WhatsApp to the inbox, or send webhooks. You can also connect your own AI agent, like one built on Vapi.
Port the number your customers already know, or pick a new local or toll-free one. See the porting guide.
Have your Google Voice account details and the number’s transfer PIN ready. Keep Google Voice active until the port completes.
Forward calls to each person’s mobile, record a greeting with extensions, and invite the team to the shared inbox.
Bring your number and your whole team.
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