Make and receive audio and video calls over the Internet using your computer. Create or join call conferences. Automatically search and import contacts from Outlook, Windows contacts, Mac address book, Google contacts, external CSV file, and other sources.
The 5.4.5 version of Zoiper 5 is available as a free download on our website. Zoiper 5 lies within Communication Tools, more precisely Instant messaging. This program is an intellectual property of Zoiper.com. This download was scanned by our built-in antivirus and was rated as clean.
From the developer:
Don't like it when people eavesdrop on your conversations? Neither do we, that's why we offer free encryption for all your text, voice and video communications with TLS/SRTP and ZRTP.
You may want to check out more software, such as BORGChat, Phoner or IVM Answering Attendant, which might be similar to Zoiper 5.