Acrobits has updated its Softphone application for the iPhone and iPod touch adding support for secure calls and improvements to Google Voice integration and call interruption. Acrobits Softphone 4.6 now supports encrypted secure calls using SRTP/SDES and ZRTP; users can receive incoming ZRTP calls at no additional charge but must purchase an add-on feature via in-app purchase to initiate outgoing ZRTP calls. The update also improves the Google…
