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Kall8 VoIP
by Kall8 VoIP

What Kall8 VoIP is
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 suits
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 it does well
- 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
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| VoIP Personal | 1 local number · 1 VoIP user · Unlimited VoIP minutes | On request |
| VoIP Business | 3 local numbers · 3 VoIP users · Unlimited VoIP minutes | On request |
| VoIP Enterprise | 5 local numbers · 5 VoIP users · Unlimited VoIP minutes | On request |
| Additional Microsoft Teams user | Billed monthly on your invoice · per user · includes local number · Teams client calling | $11.95 a month |
| Microsoft Teams | $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 | $13.56 a month |
| Additional Kall8 Phone user | Billed monthly on your invoice · per user · includes local number · unlimited US48 calling subject to fair use | $14.95 a month |
| Kall8 Phone | $191.52 billed annually, saving $47.88 · per user · 1 user with local number · unlimited US48 calling subject to fair use · $0 activation | $15.96 a month |
| Team 3 | $575.52 billed annually, saving $143.88 · per user · 3 users with local numbers · auto-attendant · hunt group · unlimited US48 calling subject to fair use · $0 activation | $47.96 a month |
The first 8 of 9 plans, as kall8.com lists them, read 22 Sept 2026. The maker's own page has the final word. Every plan
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.
Facts from Kall8 VoIP's own pages
- Auto attendant
- Yes · kall8.com, 22 Sept 2026
- Business numbers
- multiple · kall8.com, 22 Sept 2026
- Call concurrency
- Kall8 Phone and Teams users can have up to three simultaneous calls per user. · kall8.com, 12 Oct 2026
- Calling
- Unlimited calling applies to calls on a user's local number through the Kall8 app or Teams client within the US48, subject to published thresholds of 2,500 minutes per user monthly, 25% of minutes to or from fewer than five numbers, and a 1,500-minute account average per user. · kall8.com, 12 Oct 2026
- Call routing
- custom · kall8.com, 22 Sept 2026
- Company history
- Kall8 says it began in 1993 as an enhanced telecom design firm and became an integrated service in 1996. · kall8.com, 12 Oct 2026
- Desktop and mobile apps
- Yes · kall8.com, 22 Sept 2026
- Emergency calling
- Kall8 says E911 uses a registered emergency address for each user. · kall8.com, 12 Oct 2026
- Founded
- 1993 · kall8.com, 19 Oct 2026
- Free plan
- No · kall8.com, 22 Sept 2026
- Headquarters
- Seattle, Washington, United States · kall8.com, 19 Oct 2026
- Included users
- 1 · kall8.com, 22 Sept 2026
- Integrations
- Microsoft Teams calling is available through Direct Routing and requires a Microsoft Teams Phone license for each calling user. · kall8.com, 12 Oct 2026
- Intended customers
- Kall8 describes Kall8 Phone as a cloud phone system for small businesses and invites teams with ten or more users to request a quote. · kall8.com, 12 Oct 2026
- Metered usage
- Toll-free numbers added to Kall8 Phone or Teams plans are metered at 6.9¢ per minute, and calls forwarded outside the contiguous US48 use international rates. · kall8.com, 12 Oct 2026
- Number features
- Kall8 numbers include forwarding rules, voicemail, call blocking, conferencing, analytics, call recording, notification emails, and app access. · kall8.com, 12 Oct 2026
- Phone system features
- Team plans include an auto-attendant with menus and extensions and a hunt group; Team 5 also includes call recording. · kall8.com, 12 Oct 2026
- Privacy
- Kall8 says it does not sell, rent, license, trade, or otherwise disclose customer personal information without consent except as described in its privacy policy and terms. · kall8.com, 12 Oct 2026
- Product
- Kall8 Phone is a per-user cloud phone system for small businesses, with a local number and desktop and mobile apps for each user. · kall8.com, 12 Oct 2026
- Support
- Kall8 advertises US-based support available 24/7 by phone and email. · kall8.com, 12 Oct 2026
Where Kall8 VoIP stands on Freedom251
- Business Phone Systems#138 of 167