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@PumpkinJack 's suggestion for calling the 1 800 567 6868 number:
"Here is a tip to save others time when they call Passport helpdesk.
1)Select language by pressing 1 for English and 2 for French
2) If it takes you to the pre recorded message that gives instructions on where and how to apply for passport, just disconnect the call as it will play for a minute and disconnect itself.
If it asks if you’re applying from Canada or Outside Canada, it means you will get a spot in the queue. Stay on the call and select options as prompted.
This is new in the IVR options apparently to keep the queue small around 200 + people. It takes a while to get into the queue as you have to keep trying again and again but the wait time would be an hour or less once you get into the queue."