A standard set of code and signaling formats for radio paging systems developed in the 1970s by an international team of engineers.The name was derived from the fact that the British Post Office (BPO), which was the Post, Telegraph, and Telephone (PTT) agency for the United Kingdom at the time, chaired the effort.The POCSAG standard, which is in the public domain, provides for transmission speed of up to 2,400 bps, using channels of 25 kHz in the 150