| Price from | $19.99/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 1 |
| Spec score · Call Management system | 8.7 (#5) | 8.2 (#13) |
| Free plan | Yes | Yes |
| Product | Callision is a browser-based cloud contact center and business phone system for sales and customer service teams. | MikoPBX is a free IP PBX for business, based on Asterisk, offered for on-premise or cloud deployment. |
| Support | Callision offers a 30-minute, no-commitment review of a customer’s telephony needs and its capabilities. | The support page lists paid support from 100$ per request, plus community forum, wiki, and Telegram chat options. |
