For callers who have intentionally and correctly dialed {TAIL ~ a personal telephone number}, upon {HEAD ~ detection} of the typing of the last character of a valid command string, e.g., a pound , a page to the called party is immediately initiated by the bridging and signaling unit 
For callers who have intentionally and correctly dialed { TAIL ~ a personal telephone number } , upon { HEAD ~ detection } of the typing of the last character of a valid command string , e.g. , a pound , a page to the called party is immediately initiated by the bridging and signaling unit
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH