Incredible PBX
7.1#5 in ip pbx softwareFree planFree planWebLinuxmacOSSelf-hosted
VisitIncredible PBX vs PortSIP PBX
PortSIP PBX
8.0#20 in business phone systemsFree planFree planAndroidiOSWebAPI
VisitWhat both publish
| Fact | Incredible PBX | PortSIP PBX |
|---|---|---|
| Auto attendant | Yes | Yes |
| Business numbers | multiple | multiple |
| Call routing | custom | custom |
| Deployment | The maker lists on-premise hardware, cloud platforms, and virtual machines as deployment options. | PortSIP PBX can run in a customer data center, on premises, or on Azure, AWS, and Google Cloud, with Docker deployment. |
| Free plan | Yes | Yes |
| Integrations | The maker provides a guide for setting up Microsoft Teams users as extensions to Incredible PBX. | Microsoft 365 integration supports user provisioning, SSO in web and native apps, and directory and contact synchronization. |
| Maker | The Home page identifies Ward Mundy & Associates LLC as the owner of the Incredible PBX registered trademark. | The site footer identifies the company as PortSIP Solutions, Inc. |
| Product | Incredible PBX is an open-source GPL aggregation for a production-ready unified communications VoIP platform supporting SIP and IAX. | PortSIP PBX is a multi-tenant communications platform for service providers and MVNOs offering Cloud PBX, UCaaS, CPaaS, and CCaaS services. |
| Security | The HomePage lists an IPtables firewall, Fail2Ban, OpenVPN, NeoRouter VPN, and PortKnocker among the bundled components. | PortSIP PBX and its apps support SRTP and DTLS-SRTP media encryption, with AES-256 when enabled. |
| Voicemail transcription | Yes | Yes |
Incredible PBX plans
- Incredible PBXFree
PortSIP PBX plans
- Free EditionFree
- Licensed Edition — Perpetual—
- Licensed Edition — Annual—
- Annual licensePriced on request
- Perpetual licensePriced on request
Pick Incredible PBX if…
You want what its maker publishes above — check its page for the details.
Pick PortSIP PBX if…
PortSIP PBX suits service providers and MVNOs that need a broad communications, contact-center, and developer platform. It also fits organizations choosing self-hosted, cloud, or Docker deployment with Microsoft 365 integration.