Social bookmark creating Security in VoIP VoIP for long has been termed as a cheap and unsecure mode of communication whereby the voice packets are traversed through public internet. There is control over the packets flow and hence highly unsecure. Unsecure communication never gets its due placed in serious business environment so because of this VoIP is never treated as a genuine secure way of conversation about sensitive matters.
Along with voice quality restrictions this is another main reason for hindrance in VoIP growth among serious enterprises and workers. Possible Solutions There are prominent solutions to this security problem First is VPN Tunneling being implemented in client side devices plus client side PC softphones and Mobile Softphones. Kostenloser vpn and the rarely present solution is EncryptionDecryption of VoIP packets. VPN Tunneling Explained The client creates a dedicated secure connection with the server and then start sending data through this secure dedicated channel.
The protocol followed between client and server is a declared and known protocol like with OpenVPN Microsoft PPTP etc. EncryptionDecryption Explained The client encrypts information both signaling and RTP before sending them over internet. The encryption of internet data is done through a proprietary logic and algorithm that is only recognized to the developer of the encryptiondecryption. The data then is sent to the server where the same algorithm is used to decrypt the data and sent it across for the SIP server.
Benefits and Disadvantages of EncryptionDecryption over Tunneling Since tunneling uses standard protocol hence it can simply be detected by any firewall software. Because of easy detection the tunnel can be blocked or stopped at any level. As VPN tunneling is invoked by independent programs most of the times many PC firewalls do not detect and authorize this. Some VPNs tunneling enabled softphones use more than one protocols such as pptp and the most than one ports widelyused. These ports are each of the times blocked by ADSL routers.