I just found your message in my spam folder.
Attemped to test against freeswitch master but I can't get mod_opus to build.
Probably going to be mid week before I can look at this again.
# make mod_opus
make[1]: Entering directory `/usr/local/src/freeswitch'
make[2]: Entering directory `/usr/local/src/freeswitch'
make[2]: Leaving directory `/usr/local/src/freeswitch'
make[1]: Leaving directory `/usr/local/src/freeswitch'
make[1]: Entering directory `/usr/local/src/freeswitch/src/mod'
make[2]: Entering directory `/usr/local/src/freeswitch/src/mod'
making all mod_opus
make[3]: Entering directory `/usr/local/src/freeswitch/src/mod/codecs/mod_opus'
Makefile:822: *** You must install libopus-dev to build mod_opus. Stop.
make[3]: Leaving directory `/usr/local/src/freeswitch/src/mod/codecs/mod_opus'
make[2]: *** [mod_opus-all] Error 1
make[2]: Leaving directory `/usr/local/src/freeswitch/src/mod'
make[1]: *** [mod_opus] Error 2
make[1]: Leaving directory `/usr/local/src/freeswitch/src/mod'
make: *** [mod_opus] Error 2