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VOIP for VPN Solution
using VOIP accross an SSL-based VPN can actually improve the call quality (as measured by MOS scores). The improvement seems to be due to encapsulating the UDP VOIP packets ( SIP and RTP ) in TCP/IP. NB Datagram-based VPNs, such as IPSec's ESP are still bad.
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The extensive support for virtual private network (VPN) technologies is a private network, a VPN encompasses links across shared or public networks. VPN connections use the connectivity of the Internet plus a combination of tunneling and data encryption technologies, such as the Point-to-Point Tunneling Protocol (PPTP) and Layer Two Tunneling Protocol with Internet Protocol security (L2TP/IPSec), to connect remote clients and remote offices.
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