| 摘要 |
A system for generating number tones for dialing a telephone device comprising a socket assembly and at least one dialer module. The socket assembly defines at least one socket, where the socket is electrically connected to the telephone device. The at least one dialer module comprises a first memory device for storing a sequence of numbers, a first data entry device and a plug electrically connected to the first memory device. The plug engages the socket to electrically connect the first memory device to the socket assembly. Operation of the first data entry device causes the generation of an electrical DTMF signal based on the sequence of numbers stored by the memory device. The electrical DTMF signal is transmitted to the telephone device.
|
