Version 3.1.1 (March 2018)

• Windows 10 support added.
• Added possibility to dial a phone number from the command line or shortcut. It is enough to specify the target number as a parameter to FaxVoipPhone.exe. Can be used by third-party programs or scripts.
• Fixed problem with SIP Registration with some equipment and VoIP Service Providers (e.g. T38FAX.com, mondotalk.com). RFC3261 does say the registrar must send back ALL registrations, however we only should deal with replies from the registrar that we actually requested. Sometimes registrar tries to be smart and adjusts the Contact field to be the external address as per the Via header rport. IMHO this is a bug as it does not follow what is implied by RFC3261/10.2.4 and 10.3 step 7. It should include the original as well as the extra Contact, but it does not.
• New styles applied for better compatibility with Windows 10. New set of icons. Rich tooltips in the tree view (both icon and text).
• In Windows 10, the 'Transparent buttons' option is removed. Unfortunately, this system style is no longer supported on this operating system.
• In the help system, the font is changed from Arial 9 to Segoe UI Light 10. The previous one does not look good on new systems, e.g. Windows 10.
• The default styles are changed in the Log Book, Phone Book, Audio and Fax panel, Random Calls Monitor and in the help system.
• Added instructions on how to manually fix file associations on Windows 10.
• Added instructions on how to configure Fax Voip Softphone with different VoIP Service Providers.
• Improved protection system. Short license keys.
• Some other improvements.

Version 2.3.1 (October 2014)

• Removed unnecessary 2-3 seconds delay when dialing phone number longer than 10 digits.
• Fixed various problems with printing and using printto function. New Repair printto verbs function repairs standard file associations. Also, the direct call to the shimgvw.dll library instead of printto now used where possible.
• Shield icon now used to indicate that administrator rights are required. Other standard system icons applied where possible.
• Fixed slightly incorrect behavior of Mail To... function in the Log Book.
• Fixed bug with folder permissions definitions on Window XP/2003 if NTFS file system is used.
• Improved HTML Help System. Search tab added. Breadcrumbs and navigation arrows added at the top of every page.
• Online Web Help Manual implemented.
• Some other improvements.

Version 2.2.1 (March 2014)

• Windows 8.1 and Windows 8.1 64-bit support added.
• Call Transfer (SIP REFER, H.450.2).
• Call Forwarding (302 Moved Temporarily, H.450.3). Forward All Voice Calls, Forward Busy, Forward No Answer options.
• Hairpin Call Transfer and Hairpin Call Forwarding (2 call legs) independent on capabilities of VOIP network. Playing music during Call Transfer.
• Improved user interface. Slide Show. Quick access to interface settings.
• Fixed possible crashes on some computers, in particular on computers with multi-touch screen.
• Fixed some issues related to licences. Fixed application crash on System ID change. Fixed dependency of SystemID (rare but possible on some new computers) on whether the user has administrator rights or not. Fixed some issues with temporary keys.

Version 2.1.1 (August 2013)

• SIP/H.323 software telephone.
• Call Recording.
• Playing audio messages into the telephone line.
• Sending and Receiving T.38 and Audio Faxes.
• Music on Hold.
• Phone Book.
• Log Book.
• Random Phone Calls.