Have your SIP credentials (Username, Password, and Domain) ready from your provider to start making calls immediately. Should You Upgrade Instead? If you need end-to-end encryption (TLS/SRTP) modern dark mode
Download the latest Zoiper from the official website: 👉 Zoiper 3.7 Download
Many users prefer its simple, compact layout over the expanded graphic interfaces of modern versions. Have your SIP credentials (Username, Password, and Domain)
: It seamlessly handles both SIP and IAX2 accounts, giving you more flexibility with different VoIP providers. Core Features of the Zoiper 3 Series : It seamlessly handles both SIP and IAX2
Always scan files from third-party sites for malware before installation. Linux/Ubuntu
Zoiper 3.7 is a legacy release from the pre-2020 era. It’s a softphone application that allows you to make voice and video calls over SIP (Session Initiation Protocol) and IAX (Inter-Asterisk eXchange) protocols. It’s commonly used with Asterisk, FreeSWITCH, 3CX, and other VoIP servers.