Discover Mac OS X Softwares to Phone calls.
Use Viber Out to make calls to regular phone numbers worldwide at competitive rates.
Telephone is a user-friendly SIP softphone application for macOS that enables encrypted voice calls over the internet or a private network. It supports various codecs and offers features like call recording, address book integration, and secure communication.
Viber is a comprehensive messaging and VoIP application enabling free and secure calls and messages to users worldwide. It offers robust features for both individual and group communication across various devices.