Secure SIP with TLS

Discussion in '3CX Phone System - General' started by computerstlouis, Aug 20, 2013.

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  1. computerstlouis

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    Does anyone have an idea how much additional overhead enabling Secure SIP with TLS creates for the server's processing or additional latency in packets?

    Just curious to make sure I don't turn it on for a couple clients and kill their performance.

    Thanks,

    Seth
     
  2. bardissi

    bardissi Member

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    The short answer is that TLS can compound the processing load from 3 to 17 times the normal processing requirements depending on environmental circumstances.

    Check out this doc which goes through a pretty deep analysis on this topic.

    http://www.cs.columbia.edu/~hgs/papers/Shen1008_TLS.pdf
     
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