This read-write integer, ranging from 1 to 65535, determines the period (implicitly in milliseconds, matching the sibling timeout objects in this MIB) of the pulses the Incoming MFC register sends during signaling. An admin tunes it to match the pulse timing expected by the interconnected exchange, since MFC signaling relies on precisely timed tone pulses to exchange digits and control information. For example, leaving this at its default of 150 sets a 150-unit pulse period, while an admin interworking with equipment that expects a different cadence would adjust it accordingly.