| VoIP Provider Name | Our Review |
| Allo | Read Our Allo Review |
| CustomTollFree | Read Our CustomTollFree Review |
| eFax | Read Our eFax Review |
| eVoice | Read Our eVoice Review |
| FreedomVoice | Read Our FreedomVoice Review |
| FreedomVoice FaxFreedom | Read Our FreedomVoice FaxFreedom Review |
| Intercel Online | Read Our Intercel Online Review |
| JoiPhone | Read Our JoiPhone Review |
| Lingo | Read Our Lingo Review |
| MyFax | Read Our MyFax Review |
| Nextiva | Read Our Nextiva Review |
| Nextiva vFax | Read Our Nextiva vFax Review |
| Ooma | Read Our Ooma Review |
| Phone.com | Read Our Phone.com Review |
| PhonePower | Read Our PhonePower Review |
| PhonePower PBX | Read Our PhonePower PBX Review |
| RapidFAX | Read Our RapidFAX Review |
| RingCentral | Read Our RingCentral Review |
| RingCentral Fax | Read Our RingCentral Fax Review |
| Skype | Read Our Skype Review |
| TollFreeForwarding | Read Our TollFreeForwarding Review |
| ViaTalk | Read Our ViaTalk Review |
| Virtual PBX | Read Our Virtual PBX Review |
| Vonage | Read Our Vonage Review |
| Vontastic | Read Our Vontastic Review |