The cost-per-connect time is a characteristic represented by a
single-byte value in the range 0 to 255 that expresses a relative cost
of using a transmission group. The units for cost-per-connect time
are installation-defined and are typically based on the applicable
tariffs of the transmission facility being used by the transmission
group. The cost-per-connect time values that a network
administrator assigns to the transmission groups in a network
should reflect the relative expense of each transmission group as
compared to all other transmission groups in the network. A value
of 0 means that the cost of connecting over the transmission group
is at no additional cost (as in the case of a non-switched facility.