This read-write integer, ranging from 1 to 65535, determines the delay in milliseconds that the equipment allows for reception of a forward MFC signal before treating it as failed. An admin tunes it similarly to the backward-signal timeout but for the opposite signaling direction, ensuring call setup does not hang indefinitely waiting on the far end. For example, leaving this at its default of 24000 allows up to 24 seconds for a forward signal to be received before the register times out.