| Price from | — | €1.20/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Plans published | 9 | 11 |
| Spec score · Business Phone Systems | 9.2 (#6) | 8.6 (#36) |
| Spec score · Cloud PBX Software | 9.3 (#1) | 8.2 (#13) |
| Auto attendant | An auto-attendant acts as a virtual receptionist that greets callers and routes them. | Yes |
| Business numbers | multiple | multiple |
| Call routing | custom | Users can build IVR menus, ring groups and queues in a visual editor and route calls using availability, caller needs and time of day. |
| Desktop and mobile apps | Yes | Yes |
| Free plan | No | Yes |
| Integrations | Listed integrations include Zoho, Salesforce, Microsoft Dynamics 365, HubSpot, Freshworks, Freshdesk, Zendesk, Bitrix24, LeadSquared, Kapture, Microsoft Teams and Google Workspace. | Voxbi offers integrations with Odoo, Microsoft 365 and Microsoft Teams, plus a REST API and webhooks for other systems. |
| Product | Acefone describes itself as a cloud-based communications provider for businesses, with AceX products including Interactions Hub, API Connect, and Campaigns. | Voxbi is a cloud phone system that replaces on-premises PBX hardware with a browser-based app. |
| Support | The Professional plan includes 24x7 chat support and 16x5 call support; Ultra includes 24x7 chat and call support. | Voxbi One plans include email support, while Voxbi Managed adds phone support and an SLA with downtime credit. |