ZOIPER Free SIP and IAX softphone - Version 2.00 ZOIPER Free Version 2.0 is a new generation SIP and IAX softphone compatible with the Asterisk platform as any other SIP or IAX capable system. ZOIPER Free Edition features include: SIP + IAX/IAX 2 protocols, STUN support, STUN server per account, Echo cancellation, DTMF tones sending, Support for multiple audio devices, Automatic user registration, Call transfer, Hold function, Codecs: GSM, ulaw, alaw, speex, ilbc, Adaptive, Call history, Address book, Quick dial panel, Optional Automatic pop-up window for incoming call, Always on top, Call logs, Voice mail message information, Account password encryption, Upgrade notification, Jitter Buffer, Adjustment of audio device, Codecs priority, Portable storage compatibility, Multilanguage support; ZOIPER can also be re-branded. You can choose one of the three types of re-branding: Basic - colours, name and logo to your choice; Re-branding with additional development – e.g. changing the language; adding, disabling, removing menus, options, buttons; adding functionalities; Complete – you can go for complete change of the