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Reply To: tch blocking and tch congestion


as you said, it is vendor dependent.
the formula is quite simple… call success is representing the success of a call, from call setup to the call release.

it’s a very global indicator.

the (100% – call drop rate) is useless, because it’s just another way of displaying the call drop ratE. It shows exactly the same info, there is no value-added to such indicator.