Abbax Business Phone System vs OnSIP
| Abbax Business Phone System | OnSIP | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | $19.99/mo | $18.95/mo |
| Open source | No | No |
| Platforms | Web, Windows, macOS, Linux, iOS, Android | Android, iOS, macOS, Web, Windows |
| Free plan | No | Yes |
| Paid from | $19.99/user/mo | $18.95/user/mo |
| Included users | 51 users | 5 users |
| Business numbers | multiple | multiple |
| Auto attendant | Yes | Yes |
| Call routing | custom | custom |
| Voicemail transcription | Yes | Yes |
| Desktop and mobile apps | Yes | Yes |
Both are listed in Best Business Phone Systems. On Everything Xiaomi, OnSIP scores higher on our published basis.