OPBX vs PortSIP PBX
| OPBX | PortSIP PBX | |
|---|---|---|
| Free plan | Yes | |
| Paid from | Free | |
| Platforms | api, Linux, self-hosted, Web | Android, api, iOS, Linux, self-hosted, Web, Windows |
| Free plan | Yes | Yes |
| Call routing | custom | custom |
| Included users | 3 users | |
| Business numbers | multiple | |
| Auto attendant | Yes | |
| Voicemail transcription | Yes | |
| Desktop and mobile apps | Yes |
Listed together in Best Business Phone Systems