This article presents a study for VoIP technology to elaborate a differentiated VoIP infrastructure with the proposed approach ProxySIP Bridge. This approach enhances the Back-to-Back User Agent With Media (B2BUAWM) approach in order to isolate the voice traffic from the remaining general purpose traffic and to enable direct voice traffic whenever possible. A differentiated VoIP infrastructure with ProxySIP Bridge is presented, which is an alternative to B2BUAWM original approach.
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