MicroSIP - open source portable SIP softphone based on PJSIP stack for Windows OS.
It allowing to do high quality VoIP calls (person-to-person or on regular telephones) via open SIP protocol. From cloud of SIP providers you can choose best for you, register account and use it with MicroSIP. You'll get free person-to-person calls and cheap international calls.
License: GPLv2
Changelog
Shortcuts: added BLF option
Dialer: BLF for shortcuts with blinking
Contacts: internal changes, affected add/edit/delete/import/directory, presence and search
Calls: consider caller ID for incoming calls (Remote-Party-ID)
Calls: fixed context menu items for multiple selection
Calls: fixed data display in some situations
Command line: new command /hangupincoming
Command line: new command /reset (delete all data)
Messages window: fixed closing and calls hadling
Callto links: fixed case of spaces in the number
Added messages / fixed translations
Minor fixes
