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Reply To: SDCCH of 1800 not Busy in Co-BCCH cell.

#47236
Pix
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It is normally forbidden to define a SDCCH in 1800 zone (by 3GPP standards), so maybe your BTS doesn’t support allocating 1800 sdcch to MS in a cell with a 900 bcch.

In any case, you should change your configuration in order to follow standards.