This Integer32 (10..10000), in seconds, sets the partial-dial (inter-digit) timer used with a digit map for both CAS and non-CAS endpoints during mid-call DTMF digit reporting; the timer restarts after each digit until a match or mismatch occurs. This governs how long the gateway waits between digits before giving up on a partial dial sequence, so an admin tunes it based on how quickly users are expected to enter mid-call digits like feature codes. For example, if users report mid-call DTMF feature codes timing out between digits, an admin might increase vismDsx1MidcallTpart to allow more time between keypresses.