Before I start "playing" with RRLP in OpenBTS 2.8 with UmTRX I'm just wondering if anybody has some current advice.

I note in CLI.cpp:

//apparently non-function now -kurtis
//addCommand("sendrrlp", sendrrlp, "<IMSI> <hexstring> -- send RRLP message <hexstring> to <IMSI>.");

There are plenty of atricles out there e.g.

http://wush.net/trac/rangepublic/wiki/rrlp
http://www.mentby.com/Group/openbts-discuss/question-regarding-the-rrlp-in-openbts-28.html

Basically, does it work and hence worth persuing?

Regards
Craig