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Reply To: call drop due to expiry of T200 timer

#54421
Bijoy
Guest

Hi
TTALONG in the BSC controls the value of the time-alignment timer.Time Alignment is a mechanism used between the BTSs and the transcoders to minimize the time speech and data frames are stored in the BTS before being sent out on the radio interface.The time-alignment timer TTA is located in the BTS and it starts when the BTS sends time-alignment change information to the transcoder and it stops after receiving a response from the transcoder.

TTALONG will be used for TGs where SIGDEL is set to LONG.SIGDEL is set to LONG for Satellite A-bis.There are Ericsson specific parameters.

Br\\
Bijoy