in motorola, 1 RSL = 1 BTS ? this is very surprising… normally, 1 RSL = 1 TRX. And it is possible to put 4 RSL on 1 Abis TS (64kbps), or it is also possible to multiplex the RSL within the TRX’s 2 Abis TS.
How can motorola carry the signalling of one BTS of 15 TRX through only 64kbps ? do you know the trick ?