Side by side
MicroSIP vs PortSIP Softphone
Both stand on softphone and calling apps. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Choose MicroSIP for free desktop VoIP calling with call management and video in the standard edition. Look elsewhere if you need a mobile app or telephony service included. Custom-branded builds are available for €150, paid once, with future changes billed separately.
Visit MicroSIP
PortSIP Softphone is a free option for the listed desktop and mobile platforms, but its legacy status matters: the maker directs PBX v22.x users to PortSIP ONE. The broader PBX platform has a free edition with limits of 3 extensions and 2 simultaneous calls.
Visit PortSIP SoftphoneThe facts
| MicroSIP | PortSIP Softphone | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Windows | Android, iPhone, Windows |
| Lowest paid plan | Custom-branded softphone build: €150, paid once | Free or on request |
| Plans published | 2 | 3 |
| Maker | Not published | Not published |
| Website | microsip.org | portsip.com |
| On softphone and calling apps | #7 of 33 | #11 of 33 |
MicroSIP: what it does well
- Free desktop softphone licensed under GNU GPL v2.
- Handles multiple calls, conferences, transfers, and instant messaging.
- Supports voice and video calls through SIP or PBX systems.
- Offers TLS signaling and SRTP or DTLS-SRTP media protection.
- Standard and Lite editions have portable ZIP downloads.
What to know first
- Android, iPhone, and iPad are not supported.
- The Lite edition has no video support.
- Custom-branded builds start at €150, paid once.
- Support replies may be delayed or unavailable.
PortSIP Softphone: what it does well
- Free app for Windows, iOS, and Android
- Browser calling and SIP support
- PBX offers calls, messaging, and meetings
- Microsoft 365 integration supports SSO and directory syncing
What to know first
- Legacy app is for PortSIP PBX v16.x
- PBX v22.x users are directed to PortSIP ONE
- PBX Free Edition is limited to 3 extensions and 2 simultaneous calls
Alternatives to MicroSIP Alternatives to PortSIP Softphone The whole list