ISDN vs SIP Trunk

ISDN vs SIP Trunk

First defined in 1988, the ISDN standard (which stands for Integrated Services Digital Network) was established to carry voice, video, data and other network services on the traditional telephone company network.  ISDN is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network. After some time SIP trunking came along to challenge the status quo.  Whereas ISDN was designed to enable voice networks to carry data, SIP was designed to enable data networks to carry voice — including advanced communications features ISDN never dreamed of.…
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