The DS1 link containing the call. This may be a DS1
contained within a larger grouping of multiple DS1s
within a single physical port.
If the physical port is of type DS1, this value is
identical to cctActiveEntryPort.
If the DS1 is a logical subinterface within the
physical port, this value is the number of the DS1
within this slot.
Examples:
8 port DS1 card - cctActiveEntryPort and
cctActiveEntryDs1 will have
identical values.
3 port T3 card - cctActiveEntryPort represents
T3 ports.
cctActiveEntryEntryDs1 represents
logical T1 interfaces.
Each T3 contains 28 T1 interfaces.
The T1 interfaces are numbered
sequentially across the entire
T3 card.