So depends on your perspective and what your planning. Can be as complex as your solution Have a look at this for basic IP calculations. http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a0080... And here for ISDN trunks http://www.had2know.com/technology/erlang-b-calculator-formula.html On 24 Jul 2013, at 20:50, "Adelia C." <hexade@hotmail.com> wrote:

Need help estimating BW needs. This is by far the most helpful forum I use so I am turning to you, good people of Freeswitch. I posted elsewhere with no success.

Is there a site or book you found helpful for your estimates? I found a few sites/formulas but no "tutorial" on how to get from the info I have (mainly MOU, max. concurrent sessions, codec, average call duration, usual day/week traffic pattern) to an actual BW number. Where do I start? Am I asking the wrong question, do I use wrong parameters?

-- View this message in context: http://freeswitch-users.2379917.n2.nabble.com/BW-estimation-for-VoIP-trunk-t... Sent from the freeswitch-users mailing list archive at Nabble.com.

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