An honest, feature-by-feature comparison to help you pick the right VoIP platform for your team.
| Feature | Grapphenvox | OpenPhone |
|---|---|---|
| HD Softphone (web, desktop, mobile) | ✓ | ✓ |
| AI Call Summaries | ✓ | Paid add-on |
| AI Voicemail Transcription | ✓ | Higher tier only |
| Drag-and-drop IVR Builder | ✓ | Limited |
| SMS Inbox | ✓ | ✓ |
| Call Flip (desktop <> mobile) | ✓ | ✗ |
| Bring Your Own Trunk (BYOT) | ✓ | ✗ |
| Chrome extension click-to-call | ✓ | Partial |
| Transparent per-seat pricing | ✓ from $15 | Quote-based |
| Free trial (no credit card) | ✓ | Limited |