The dial delay timer is set for one second.
Per Manager: Dial Delay Time (secs): Default = 4 (USA/Japan) or 1 (ROW), Range = 1 to 99 seconds.
This setting sets the time the system waits following a dialed digit before it starts looking for a short code match. In situations where there are potential short codes matches but not exact match, it also sets the delay following the dialing of a digit before dialing complete is assumed. If there is a second pause while the user is dialing the system thinks the user has completed and will not look further for digits.