R

VoIP calling apps

Rebtel

rebtel.com · checked 25 Sept 2026

How it plugs in

—Public API
NoOpen source
NoFree tier

Signal on VoIP calling apps4.6#15 of 21

Pricing

  • Cuba€5 one-time
  • Nigeria€1 one-time

As rebtel.com lists them, checked 25 Oct 2026.