A: Yes, the classic version was free for personal, non-commercial use with basic features. Pro features (like call transfer and multi-line) required a key.
It lacks the modern TLS/SRTP standards found in Zoiper 5. How to Get It Safely i--- Zoiper Classic 2.43 Download
The software was discontinued years ago, replaced by Zoiper 5 and Zoiper Next, which offer modern UI, better security (TLS/SRTP), and mobile sync. A: Yes, the classic version was free for
