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PortSIP Softphone
What it is
PortSIP Softphone is a free calling app for Windows, iOS, and Android, with browser calling and SIP support. It is the legacy softphone for PortSIP PBX v16.x; users of PBX v22.x are directed to PortSIP ONE. The wider PortSIP communications offering combines calls, messaging, and meetings, alongside call routing, SMS, WhatsApp, team messaging, contact center tools, and voice and video meetings. Contact center capabilities include skill-based routing, queue strategies, live wallboards, analytics, real-time monitoring, and training tools. PortSIP also describes AI features for call and voicemail transcription, notes, summaries, and sentiment analysis. PBX deployments can run on customer infrastructure, Azure, AWS, or GCE, in a cloud, data center, or on premises using Docker. Microsoft 365 integration supports user provisioning, single sign-on in web and native apps, and directory user and contact syncing. The maker also lists APIs, webhooks, Pub/Sub, and SDK options for custom integrations. PortSIP PBX Free Edition costs nothing and supports up to 3 extensions and 2 simultaneous calls.
For and against
For
- Free app for Windows, iOS, and Android
- Browser calling and SIP support
- PortSIP PBX combines calls, messaging, and meetings
- Microsoft 365 integration supports SSO and directory syncing
Against
- Legacy app for PortSIP PBX v16.x
- PBX v22.x users are directed to PortSIP ONE
- Free PBX edition supports 3 extensions and 2 simultaneous calls
The verdict
PortSIP Softphone provides free calling with browser calling and SIP support on three listed platforms. Check the PBX version first: it is the legacy app for v16.x, while v22.x users are directed elsewhere.
Who it suits
It suits people who need a softphone on Windows, iOS, or Android and use PortSIP PBX v16.x. Users of PBX v22.x are directed to PortSIP ONE instead.
Plans and prices
PortSIP PBX Free Edition
Up to 2 simultaneous calls · 3 extensions
Read 5 Oct 2026 · portsip.com
PortSIP Softphone
Legacy app supports PortSIP PBX v16.x · Windows, iOS and Android downloads listed
Read 5 Oct 2026 · portsip.com
PortSIP PBX paid licenses
Based on extension users · 1:1 ratio of extensions to simultaneous calls · all features included
Read 5 Oct 2026 · portsip.com
On the record
- AI features
- PortSIP PBX describes AI-powered call and voicemail transcription, notes and summaries, and sentiment analysis for calls.portsip.com · read 5 Oct 2026
- Communications features
- PortSIP PBX lists calls, messaging and meetings on a single platform, along with call routing, SMS, WhatsApp, team messaging, contact center, and voice and video meetings.portsip.com · read 5 Oct 2026
- Contact center
- Contact center features include skill-based routing, queue strategies, live wallboards, analytics and reporting, real-time monitoring and training tools, and SMS and WhatsApp integration.portsip.com · read 5 Oct 2026
- Deployment
- PortSIP PBX can run on customer infrastructure, Azure, AWS or GCE, and can be deployed in the cloud, a data center or on premises using Docker.portsip.com · read 5 Oct 2026
- Developer integrations
- PortSIP lists REST APIs, Pub/Sub, messaging APIs, webhooks, a calling SDK and call control APIs for custom integrations.portsip.com · read 5 Oct 2026
- Legacy status
- PortSIP Softphone is the legacy app for PortSIP PBX v16.x; the page directs users of PBX v22.x to PortSIP ONE.portsip.com · read 5 Oct 2026
- Licensing limits
- Paid PBX licenses are based on extension count and include a 1:1 ratio of simultaneous calls; the pricing page says the free edition supports 3 extensions and 2 simultaneous calls.portsip.com · read 5 Oct 2026
- Microsoft 365 integration
- Microsoft 365 integration supports user provisioning, SSO in web and native apps, and syncing directory users and contacts.portsip.com · read 5 Oct 2026
- Multi-tenant privacy
- The maker says each PBX tenant is isolated and cannot see other tenants’ data or settings.portsip.com · read 5 Oct 2026
- Product scope
- PortSIP describes its communications offering as an all-in-one unified communications solution for service providers, enterprises and critical infrastructure sectors.portsip.com · read 5 Oct 2026
- Scale
- The maker says a single deployment can support 50,000–100,000 simultaneous online users.portsip.com · read 5 Oct 2026
- Support
- The site advertises 24 x 7 support and says all SDK packages include a one-year warranty with free updates and technical support.portsip.com · read 5 Oct 2026
