What is Zoiper?
Zoiper is a VoIP softphone that lets you make and receive calls over the internet instead of a traditional phone line. It supports both SIP and IAX2 protocols and has been around since 2003, making it one of the most established softphones on the market.
Key Features of Zoiper
- Voice, video calling, and instant messaging
- TLS, SRTP, and ZRTP encryption for secure calls
- Works on Windows, Mac, Linux, Android, and iOS
- Integrates with Outlook, Thunderbird, and browsers like Chrome and Firefox
- Call recording, auto-answer, and call transfer (Pro version)
- Click-to-dial support for CRM workflows
Free vs Pro: What's the Difference?
Zoiper's free version covers basic calling on mobile. On desktop, you'll need Zoiper 5 Pro, a one-time fee (around €59.95), which unlocks call recording, video calls, conferencing, and contact integration. Unlike subscription-based competitors, this is a single upfront cost — no monthly billing.
How to Set Up Zoiper
- Get your SIP account details (username, password, server address) from your VoIP provider or PBX admin
- Download and install Zoiper for your device
- Enter your SIP credentials in the setup wizard
- Test your call quality using the built-in audio/video wizard
Who Should Use Zoiper?
Zoiper works well for small businesses, remote teams, freelancers, and call centers looking for a lightweight, SIP-compatible softphone without committing to an expensive platform. It's especially popular with IT admins and support teams who need a reliable dialer that just works.
Zoiper Alternatives to Consider in 2026
If you need deeper CRM integration or AI-powered call analytics, alternatives like Bria, 3CX, CloudTalk, or Linphone are worth comparing. Zoiper remains the strongest pick for teams that just want a free, no-frills SIP client.
Final Thoughts
Zoiper is a solid choice if you want affordable, secure VoIP calling without a monthly subscription. It may lack some modern bells and whistles compared to newer platforms, but for straightforward SIP-based calling, it still holds up well in 2026.
