| 摘要 |
A call request control device, which in an offhook state, upon detecting a key input, checks the type of the key that was input. When the input key is a transmission/redial key, a determination is made of whether dial data is stored in the dial buffer. If dial data is stored in the dial buffer, then the dial data is set as a call destination number, and a call request message is sent. If dial data is not stored, then redial data is set as the call destination number, and a call request message is sent. Telephone sets incorporating such call request control device have enhanced functionality without corresponding increase in the number of keys.
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