kosten.org editorial team
Last updated: 2026-10-30
76/100
Points

Fonial is the cloud phone system for beginners: a low base fee per active phone number, no set-up fee, simple set-up. Ideal for the self-employed and small teams who want to make professional calls without a big budget.

Highlights of our Fonial review

  • €3.90 net per active phone number
  • No set-up fee
  • 30 days free trial
  • Ideal for beginners

1 Features & telephony

19/30
Points
Fonial offers the basics: call forwarding, hold queue, voice menu (IVR), ring groups. Mobile apps are kept simple. Video conferencing is missing. Voicemail-to-email and fax-to-email are available. Not suitable for complex call centre scenarios.

2 Voice quality & reliability

16/22
Points
The voice quality is good, and HD voice is available. Sufficient for small teams; anyone with enterprise requirements for resilience should ask the provider in advance about availability commitments and SLAs.

3 Integrations & administration

11/18
Points
The admin interface is deliberately kept simple – positive for beginners but limiting for power users. There is no CRM connector, but a Microsoft Teams option is available. Hardware compatibility with common SIP phones is given.

4 Security & data protection

12/16
Points
German provider from Cologne. SRTP is supported. Data processing agreement available. Basic protection is guaranteed; advanced features such as 2FA or IP whitelisting are missing.

5 Price & plans

18/14
Points
Fonial bills per activated phone number (as of October 2026, according to fonial.de, net): €3.90 per number per month, set-up €0. Without a flat rate, calls cost 1.0 cent per minute to landlines and 10 cents to mobile networks; the landline flat rate costs €4.00, the all-network flat rate €9.90 per number. Internal calls are free across locations, and you can test free of charge for 30 days. There is no permanently free plan. Very transparent price structure.

Pros & cons at a glance

Pros

  • Low-cost entry from €3.90 net
  • Extremely simple
  • No set-up fee
  • 30 days free trial

Cons

  • Limited features
  • No CRM connector
  • Calls without a flat rate billed by the minute

Conclusion: Fonial review

76/100
Good (2.2)

Fonial is the perfect entry-level solution for the self-employed and micro-businesses looking for an uncomplicated cloud phone system. Growing teams, however, will quickly reach its limits.

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