If we're trying to allocate TCH/H but don't have it, fallback to TCH/F

The rationale is as following:

If we have NECI=1, then the phone will request a channel with CHREQ
"0100xxxx Originating speech call from dual-rate mobile station when TCH/H is
 sufficient and supported by the MS for speech calls", then we will try to
allocate a TCH/H [as it is sufficient].

However, if there are no free TCH/H slots on the BTS, we abandon and can't
handle the MO call at all :(
1 file changed
tree: 5c00620295e94b825cb4b650c58765557836725c
  1. hlrsync/
  2. linux-kernel/
  3. openbsc/
  4. wireshark/