Gamma Horizon vs O2 Business SIP Trunking
| Gamma Horizon | O2 Business SIP Trunking | |
|---|---|---|
| Free plan | No | |
| Free trial | No | |
| Paid from | £1/mo | |
| Platforms | Android, iOS, Web | Web |
| Free plan | No | No |
| Pricing model | hybrid | per-minute |
| Number porting | Yes | Yes |
| Business numbers | multiple | |
| Call routing | custom | |
| Desktop and mobile apps | Yes | |
| Emergency calling | Yes | |
| Toll-free numbers | Yes |
Listed together in Best SIP Trunking Providers