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Reply To: tch blocking and tch congestion


Saurabh Singh,

The perception of customer on SD drop is inability to setup call.

while for TCH drop, the perception will be inability to finish up his call (call drop)

SD is at callsetup phase while TCH is applicable to already setup call.

Other indicator that may affect customer call setup perception are;

sd fail rate, sd congestion rate, sd drop & TCH fail rate.