Other extension telephone sends the calling sound after receiving the calling signal.

其它分机器接收传呼信号后，发出传呼讯响。

youdao

It suggested that computer operators exposed to microwave of lower intensity in the radio calling signal station might lead to sinus arrhythmia, due to the disorder of vegetative nerve system.

结果提示：无线寻呼台电脑操作人员长期接触低强度微波，可导致机体植物神经功能紊乱，从而出现窦性心率不齐的改变。

youdao

Instead, the server can signal to the resource adapter by calling the release method on the Work object.

相反，服务器可以通过调用Work对象的release方法，给资源适配器发信号。

youdao

Or how about a Sidekick LX, which boasts a kicky high-def screen and "mood lights" that change color to signal just who's calling.

FORBES: Magazine Article

Even if you're calling someone next door, the cellular signal must first travel to the local cell tower before being routed to your neighbor's phone.

FORBES: Motorola Moves Into Mesh

The roads are bumpy but negotiable, the markets are full of traders, the citizens of the land of liberty are swarming home from every refugee corner and every life of exile as if a silent migratory signal has been set off calling them back to their nests.

BBC: African view: Land of liberty?