V5 Interface Specification: C-Channel
Logical C-channel ID: Number allocated to the current C-channel
in the V5 interface (an Empty field means 'Standby').
Contains C-paths: Included communication paths:-
 PSTN:
PSTN signalling information shall not be conveyed. PSTN:
PSTN signalling information shall be conveyed.- ISDN
Ds: ISDN D-channel signalling type data shall not be conveyed.
- ISDN
Ds: ISDN D-channel signalling type data shall be conveyed.
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