Hello I would like to define a trunk from my Asterisk to a VoIP provider, but I want to make it secure, because its through the Internet. I want to be sure no one makes calls as being me, and that my calls aren't intercepted. Is it possible to define encrypted trunks? And should I define the trunk in SIP, IAX or something else? Thanks Joao Pereira
http://www.voip-info.org/wiki/view/IAX+encryption Joao Pereira wrote:> Hello > I would like to define a trunk from my Asterisk to a VoIP provider, > but I want to make it secure, because its through the Internet. > I want to be sure no one makes calls as being me, and that my calls > aren't intercepted. > Is it possible to define encrypted trunks? And should I define the > trunk in SIP, IAX or something else? > > Thanks > Joao Pereira > > > _______________________________________________ > --Bandwidth and Colocation provided by Easynews.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users
no, ipsec headers add much more traffic overhead even than small voice rtp packets bears (using low bitrate codec). this ipsec overhead is not too crucial when ecapsulating relatively big data packet Benny Amorsen wrote:>>>>>> "PJ" == Pavel Jezek <pavel.jezek@i.cz> writes: >>>>>> > > PJ> tunneling small rtp packets through vpn has big overhead, better > PJ> to use application level encryption - encrypted iax or srtp. > > IPSEC in transport mode without NAT has a very low overhead. > > > /Benny > > > _______________________________________________ > --Bandwidth and Colocation provided by Easynews.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >