MT-SMS over IuCS sent on SAPI=0, should be SAPI=3
When trying to send a MT-SMS via GSUP from
MSC_Tests_Iu.TC_iu_lu_and_mt_sms, we need to send it (like any SMS) over SAPI=3.
However, the RANAP DirectTransfer indicates "SAPI: sapi-0", as can be seen in the attached pcap file.
The TTCN3 test case fails like this:
13:33:20.385361 18 BSC_ConnectionHandler.ttcn:1323 Matching on port BSSAP .dlci := '00'O with '03'O unmatched: First message in the queue does not match the template:
don't be worried by 'BSSAP' and 'DLCI'. we translate those from RANAP to make the existing test cases happy.