gscon timeout: use proper cause code for lchan release

Since we verify the cause code of the RSL channel release in ttcn3-bsc-tests,
BSC_Tests.TC_chan_act_ack_est_ind_noreply shows an invalid release cause code
of 127. Fix that.

On gscon timeout, don't send the unrelated RSL code RSL_ERR_INTERWORKING, but a
proper RR cause code. GSM48_RR_CAUSE_ABNORMAL_TIMER is defined as the proper
cause for an expired timer (3GPP TS 44.018 10.5.2.31).

Should fix this error in BSC_Tests.TC_chan_act_ack_est_ind_noreply:

  BSC_Tests.ttcn:1590 Dynamic test case error: Assigning invalid numeric value 127 to a variable of enumerated type @GSM_RR_Types.RR_Cause.

Change-Id: Ic2e4b692e78f7b134fe57d1077a08adb48398e06
1 file changed