bsc: Start MGCP transaction ID sequence based on media_nr
This allows different MscConnHandlers to concurrently submit MGCP
messages with unique transaction ID through the shared MGCP-over-IPA
multiplex BSC<->MSC.
Without this, 2 MscConnHandlers would both send a
CRCX using trans_id=0, and the ConnectionTable in RAN_Emulation.cpp
would lookup and return the first MscConnHandler in the table during the
2nd CRCX ACK which was targeted at the second MscConnHandler.
Change-Id: Icb09d67a1f0207dc8501dd2b47c9162175b691b1
2 files changed