| 摘要 |
A venue provides one or more stickers or other visible indicia to one or more users of mobile devices, each of the one or more stickers bearing a identification number (“ID number”). A first user at the venue may register a mobile device at a server operated by a messaging service provider. Upon viewing a sticker worn by a second user at the venue, the first user may utilize the second user's ID number to cause a Short Message Service (“SMS”) text message or other content to be transmitted to the second user's mobile device via the server. The first user and the second user may thereby communicate via SMS messages without knowledge of each other's telephone numbers, and regardless of which wireless communication service providers the first user and the second user have adopted.
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