TC_data_rtp_tchh48 BTS_Tests

Failing for the past 26 builds since #2

Took 5.2 sec (from Titan)

Stack Trace

Timeout waiting for matching Downlink data frame
      BTS_Tests.ttcn:9589 BTS_Tests control part
      BTS_Tests.ttcn:8872 TC_data_rtp_tchh48 testcase