PortSIP PBX
PortSIP PBX: A feature-rich PBX with a free three-extension edition and cloud or self-hosted deployment. Ranked #17 of 166 in Business Phone Systems by our editors (7.4/10); pricing: Free plan; best for small teams wanting a free, self-hosted PBX.
At a glance
- Editor score7.4 / 10
- PricingFree plan
- Best forSmall teams wanting a free, self-hosted PBX
- Free planYes
- Business numbersMultiple
- Facts checked22 Sep 2026
Where it wins
- Free Edition includes PBX software and supports three extensions.
- Combines visual IVR, flexible routing, queues, and contact-center tools.
- Connects with Microsoft Teams, CRM platforms, and open APIs.
Where it doesn't
- Free Edition allows only two simultaneous calls.
- Paid perpetual and annual licenses are quote-based.
- Its broad feature set may exceed the needs of a basic phone system.
Our verdict on PortSIP PBX
PortSIP PBX is a software-based, multi-tenant VoIP phone system for businesses and service providers that need to run communications in the cloud or on premises. Its Free Edition supports three extensions, making it a potential starting point for a small team seeking a self-hosted PBX. The system also targets larger environments with clustered architecture, while desktop, mobile, web, and self-hosted options give buyers several deployment paths.
The call-handling toolkit goes beyond basic extensions and voicemail. It includes a virtual receptionist with a visual IVR editor, call queues, ring groups, call park and pickup, and routing based on time, holidays, presence, and dates. Contact-center features include wallboards, skills-based routing, and queue callbacks. AI transcription is listed for calls and recordings. These capabilities suit organizations with structured call flows or service teams; a buyer seeking only a simple business line may find the breadth unnecessary.
The published plans include a Free Edition with a PBX software license and no stated feature limitations, alongside perpetual and annual licensed editions that provide access to all features and base licensing on extension users. The pricing page states that free use is limited to three extensions and two simultaneous calls, while paid prices are quote-based. Integrations include Microsoft Teams Direct Routing, Microsoft 365, Google Workspace, Zoho CRM, HubSpot, Odoo, WhatsApp, and SMS/MMS; APIs, webhooks, Pub/Sub, and WebSocket subscriptions offer additional connection options. Email, ticket, and documentation support are listed, as are SSO/SAML and two-factor authentication. Choose PortSIP PBX if you need extensive routing, integrations, or deployment control; compare simpler systems if you do not need those capabilities or need published paid pricing.
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PortSIP PBX pricing
All 3 PortSIP PBX plans and prices →
PortSIP PBX fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Included users | 3 users |
| Business numbers | Multiple |
| Auto attendant | Yes |
| Call routing | Custom |
| Voicemail transcription | Yes |
| Desktop and mobile apps | Yes |
| Deployment | Cloud, Self-hosted, Desktop, Mobile |
| Platforms | Web, Windows, macOS, iOS, Android |
| Compliance & security | SSO/SAML, 2FA |
| Support | Email, Tickets, Docs · 24/7 |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 8 integrations: Microsoft Teams, Microsoft 365, Google Workspace, Zoho CRM, HubSpot, Odoo … |
| Pricing | Free plan (source) |
| Website | portsip.com |
| Facts checked | 22 Sep 2026 |
PortSIP PBX integrations
PortSIP PBX lists 8 integrations on its own site.
- Microsoft Teams
- Microsoft 365
- Google Workspace
- Zoho CRM
- HubSpot
- Odoo
- SMS/MMS
Alternatives to PortSIP PBX
- Zoom PhoneA paid cloud phone system with broad calling, routing, messaging, and integration coverage.9.2
- RingCentral RingEXA broad cloud communications suite for established organizations with complex calling needs.9.1
- NextivaA broad business phone platform for teams that need calling, messaging, routing, and analytics.8.8
See all PortSIP PBX alternatives →
Also Ranked In
PortSIP PBX is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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