Notes: To make call, you HOLD any numbers on the screen for about 1 second, a context menu will be displayed. Then choose ‘Call’.Main Features:(1)It is not SIP phone but IAX2.(2)It support IAX2 call token security.(3)It implements IAX2 call path optimization. Basically, peer to peer voice traffic is implemented. e.g., The program will do its best to try peer to peer to pass voice traffic if the asterisk iax.conf has line: transfer=mediaonly(4)Speex, uLaw codecs are supported. aLaw will be added soon.(5)Third party asterisk server is allowed by using IAX2 protocol.If you have any feedback, please communicate with us through email or facebook. Our email is [email protected]. Our facebook account is [email protected]. In addition, we have similar program for BlackBerry mobile and web browsers. For existing VOIP service providers, if you need technical help, please contact us through email([email protected]).For more information, please check facebook page: (You can search "MPhoneGG" on facebook)http://www.facebook.com/pages/MPhoneGG/140942756003476