asterisk to viber call

what i want is simple sip call and terminate through viber application viber servers i mean. its not a phone application its a server intergration simple asterisk to viber call thats all asterisk (sip protocol) to viber calls on any os ( linux prefer) its too simple as i can find a source code similar to it on internet asterisk is an open source .i am a good developper for [login to view URL] don't try to be oversmart here. i want the module it may be a stand alone module i dont care what i want is to send a sip calls to your application(IP address ) and your application terminate it through viber