The official NYSDMV web site states;
The NYSDMV does not record out-of-state violations committed by NYS drivers in other jurisdictions. The exceptions are alcohol-related violations, drug-related violations, and moving violations committed in Quebec or Ontario. Under special agreements, traffic convictions in Quebec or Ontario are recorded on NYS driver license records and carry points. Except for violations in Ontario and Quebec, points are not added to your NYS record for out-of-state violations.
If you do not respond to a ticket or fail to pay a fine for a moving violation that you committed in any state except Alaska, California, Michigan, Montana, Oregon or Wisconsin, the DMV suspends your NYS driver license until you respond to the ticket or pay the fine. If a driver from a state except these six states fails to respond to a traffic ticket issued in NYS, their driver license will be suspended until the driver responds to the traffic ticket in NYS.
Drivers from other states must contact the DMV in their home state to get information about the effect of a traffic violation conviction that occurs in NYS.
If you receive a conviction for an alcohol-related or drug-related driving violation in any state, your NYS driver license is revoked for at least six months.
The official position is not the experience reported to me by many NY Drivers. They tell me that New York divides out of state tickets into minor and major varieties and that violations such as Reckless Driving which is 5 NJ points does transfer over to their NY licenses. They also inform me that even a 4 or 2 point speeding ticket received in NJ causes their NY insurance rates to go up. I would be very interested in hearing about your experiences.