This read-create value, in milliseconds, configures the maximum tolerable network transfer delay (Cell Transfer Delay) for traffic in the local-to-remote direction, where 0xFFFF means the parameter is not significant to SPVC call setup, and it cannot be set on a slave endpoint. An admin uses this to bound acceptable latency for delay-sensitive traffic over the ATM network, with the switch factoring this constraint into path selection during connection setup. For example, for a voice circuit sensitive to delay, the master endpoint's admin would set a tight CTD value here so the switch avoids routing the connection over a path exceeding that latency budget.