"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 5590187 | Call transfer with automatic return A call processing method where a transferring station can be disconnected from a call after the call is transferred to a third station, but where the call is automatically returned to the transferring station in response to either disconnect signaling or ... | 12/31/1996 |
| 5425097 | Analog display station apparatus and method of effecting telephone features An arrangement where display control data which has been developed off-line, and which specifies the content and sequence of the display screens required to lead a customer through activation of a plurality of telephone features, is received and stored by... | 06/13/1995 |