| Price from | $12/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 6 | 13 |
| Spec score · Business Phone Systems | 9.1 (#10) | 8.7 (#28) |
| Auto attendant | Yes | Yes |
| Business numbers | multiple | multiple |
| Call routing | Calls can be sent to the right person, team, or backup. | advanced |
| Desktop and mobile apps | Yes | Yes |
| Founded | 2022 | 2011 |
| Free plan | No | Yes |
| Integrations | KrispCall advertises connections with more than 100 CRM and business tools, including HubSpot, Salesforce, Pipedrive, Zoho CRM, Zapier, Zendesk, Slack, and Microsoft Teams. | Voxcloud SIP trunks are described as compatible with SIP-enabled PBXs and can connect an existing phone system to Voxcloud. |
| Product | KrispCall describes itself as an AI-powered communication platform for business calls, messaging, coaching, and CRM workflows. | Voxcloud offers hosted cloud VoIP phone systems, virtual numbers, SIP trunks, conference calling and hosted dialling for business telephony. |