Kall8 VoIP

Windows · Android · iPhone

Freedom report

Two barsScore 5.4

  • Free tierNo free tier
  • Runs widely3 of 6 device platforms
  • DocumentedPlans, terms and facts published

Kall8 VoIP provides Kall8 Phone, a per-user cloud phone system for small businesses. Each user receives a local number and desktop or mobile apps on Android, iOS, and Windows. Businesses can use multiple numbers, custom call routing, and auto attendants; Team plans add menus, extensions, and hunt groups, while Team 5 also includes call recording. Kall8 numbers include forwarding rules, voicemail, call blocking, conferencing, analytics, recording, notification emails, and app access. Kall8 Phone and Microsoft Teams users can handle up to three simultaneous calls per user. Unlimited US48 calling through the Kall8 app or Teams client is subject to 2,500 minutes per user monthly, a 25% limit involving fewer than five numbers, and a 1,500-minute account average per user. Toll-free numbers cost 6.9¢ per minute, and forwarding outside the contiguous US48 uses international rates. Teams calling uses Direct Routing and requires a Teams Phone license. Kall8 was founded in 1993 and offers US-based phone and email support 24/7.

Who it is for

Kall8 Phone suits small businesses needing per-user cloud calling, local numbers, routing, and desktop or mobile apps. Kall8 invites teams with ten or more users to request a quote.

What is good

  • Android, iOS, and Windows apps
  • Custom call routing and auto attendant
  • Multiple business numbers
  • Up to three simultaneous calls per user
  • 24/7 US-based phone and email support

What to know first

  • No free plan or free trial
  • Unlimited calling has usage thresholds
  • Toll-free calls are metered at 6.9¢ per minute
  • Teams calling requires a Teams Phone license

Verdict

Kall8 Phone offers core cloud phone features, apps, routing, and team options for small businesses. Review the usage thresholds, metered toll-free calls, and Teams licensing requirements before choosing a plan.

Kall8 VoIP plans and pricing

All plans
VoIP Personal 1 local number · 1 VoIP user · Unlimited VoIP minutes signup.kall8.com · 22 Sept 2026
VoIP Business 3 local numbers · 3 VoIP users · Unlimited VoIP minutes signup.kall8.com · 22 Sept 2026
VoIP Enterprise 5 local numbers · 5 VoIP users · Unlimited VoIP minutes signup.kall8.com · 22 Sept 2026
Additional Microsoft Teams user $11.95/mo Billed monthly on your invoice per user · includes local number · Teams client calling kall8.com · 12 Oct 2026
Microsoft Teams $13.56/mo $162.72 billed annually, saving $40.68 per user · 1 Teams user with local number · Direct Routing · Microsoft Teams Phone license required · unlimited US48 calling subject to fair use kall8.com · 12 Oct 2026
Additional Kall8 Phone user $14.95/mo Billed monthly on your invoice per user · includes local number · unlimited US48 calling subject to fair use kall8.com · 12 Oct 2026

Compared on business phone systems

Free plan
No
Included users
1 users
Business numbers
multiple
Auto attendant
Yes
Call routing
custom
Desktop and mobile apps
Yes

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