This read-write VismFaxDeJitterInitDelay object defines the de-jitter buffer size for fax upspeed, used as a fixed size for the fixedWithTS/fixedWithoutTS modes, as a starting point for adaptive mode, or ignored entirely in passThrough mode. This buffer size directly affects how well fax data tolerates network jitter during the upspeed, so an admin tunes it based on the vismFaxDeJitterMode selected and the network path's jitter characteristics. For example, on a jittery network using adaptive de-jitter mode, an admin might still set a reasonable vismFaxDeJitterInitialDelay as a sensible starting point for the DSP to adapt from.