PORTLAND — Amtrak says it’s launching its eTicket program, which started as a pilot on the Downeaster, to all trains within its national network.

eTickets enable passengers to skip the line at the ticket window and go straight to the gate by printing their tickets anywhere or by using a smartphone to present the eTicket to the conductor.

Lines where eTickets can be used include the Northeast Corridor, state-supported routes and long-distance services.

Amtrak piloted eTickets on five routes including the Downeaster last year before Monday’s national rollout and it quickly exceeded expectations. It resulted in shorter lines at ticket counters, less tickets sold onboard trains and fewer claims of lost tickets.

The Downeaster travels between Portland and Boston, with stops in New Hampshire.

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