beep

The motorists in the traffic jam were getting more and more frustrated and started beeping their horns.

Jason beeped Sharlene after they had drunk a few beers.

Burkat told him on the evening of Sunday, July 1, that Kritch “would have to terminate Mr. Waugaman on Monday when he came in, for not answering the beeper.” […] However, when considered in light of[…] Justak’s assertion in Waugaman’s termination notice that Respondent had unsuccessfully tried to “beep” him at 6 p.m.[…]

Susan beeped Jessica, and then Jessica called her back, because Susan didn't have enough credit on her phone to make the call.