Call waiting with “Caller ID” uses a special signal in order to warn you about an incoming call, during another call there are shown the name and number of the calling subscriber on the display. The function also allows switching between two calls.
CE-Infosys, founded in 1981, Germany, is one of the world's leading developer and manufacturer of advanced network and data security systems. The company offices located in Germany, Singapore and United Arab Emirates with a network of partners worldw
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