TC_data_rtp_tchh24 BTS_Tests

Failing for the past 401 builds since #2333

Took 5.2 sec (from Titan)

Stack Trace

Timeout waiting for matching Downlink data frame
      BTS_Tests.ttcn:9593 BTS_Tests control part
      BTS_Tests.ttcn:8943 TC_data_rtp_tchh24 testcase