Like version for Symbian S60, Talkonaut 4.0 for Windows Mobile was entirely rewritten in C/C++ and now runs on any Windows Mobile 5.x or 6.x device as a native application, which allowed to reduce memory usage, improved speed and to add some functionalities that were not previously available for Java applications, like VoIP, access to file local system (improved file transfer) and interaction with other applications (Web Browser for opening URLs right from chat window).
Using a set of narrow-band Speex codecs and relying on Jingle Audio extension to XMPP protocol (same as implemented in Google Talk), Talkonaut now brings to the Windows Mobile world a very powerful combination of IM chat, Presence and VoIP calls made over data connection. Unlike standard SIP stack, that is in most cases is ripped off of default installation of Windows Mobile OS on many devices, Talkonaut allows you to make calls over GPRS, EDGE, 3G or WIFI right "of the box". Talkonaut does not require to do any VoIP configuration and overcomes all the hassle with SIP settings, yet has a powerful features to utilize multiple SIP accounts simultaneously.
Talkonaut 4.0WM allows to make free VoIP calls to Google Talk users, to SIP phones, to MSN, Yahoo, AIM and ICQ voice capable IM clients, as well as to other Talkonaut fellows.
Talkonaut 4.0WM allows to receive free calls from SIP phones (or any other VoIP networks), from Google Talk, MSN, Yahoo, AIM and ICQ users.
Talkonaut 4.0WM allows to make cheap VoIP calls (check our rates) to any mobile or landline phone number in the world.
Talkonaut 4.0WM allows to define any number of SIP accounts and use them to make free or cheap calls over third-party VoIP/SIP carriers. A flexible Dialing Plan feature is helpful for choosing routes to destinations between different carriers.
Talkonaut 4.0WM is fully equipped with all the features previously available in J2ME version of Talkonaut 3.0 and Symbian S60, inherits the same graphical user interface and menu structure.
Talkonaut 4.0WM runs on the large scale of Windows Mobile devices, including, but not limited to: HTC, HP iPAQ, Acer, Asus, BenQ, ETEN, LG, Samsung, etc.
Talkonaut 4.0WM can be downloaded over-the-air using mobile web browser from http://get.talkonaut.com/, or via PC from http://www.talkonaut.com/download.shtml.