They aren't all winter bloomers. There are plenty of summer-blooming Phals, too. Goosegirl doesn't say what type of Phal this is, other than it's a mini.
As rbarata says, they don't have a rest period, per se, and flowers do naturally fall off, so just be patient, take good care of it, and it will bloom again when it's ready. They can sometimes take a little longer to acclimate to the conditions in our home, and may skip a blooming season or bloom earlier than you would expect. I've had it happen both ways in my own personal experience.
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Cheri
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