Nokia 636 Nokia 636 User Guide in English - Page 42

c1caus.frm Page 42 Thursday, December 19, 1996 12:46 PM 7. ADDITIONAL FEATURES Sending DTMF Tones The Dual Tone Multi Frequency (DTMF) feature allows you to send touch tones which can be used to control equipment such as bank-by-phone or voicemail by using your cellular phone. There are two alternative ways to send DTMF tones: 1. Manual Transmission 1 Make a call to the desired number in the usual way (e.g., to your bank's computer phone number). 2 Enter the digits you want to be sent as DTMF tones (e.g., your bank account number and password). 2. Automatic Transmission You can send a string of digits as DTMF tones by storing the string in the phone's memory and then recalling it for automatic DTMF transmission. • When storing the string, insert a wait character between the access phone number and DTMF string. (See Adding a Wait on page 43.) 1 Recall the memory location containing the phone number and DTMF string. 2 Press the SEND key to dial the phone number. 3 After the phone number ha sdisappeared from teh display, wait for the tone and press the SEND key. • If the keypad tones have been set to off, the DTMF tones will be sent, but you will not hear them. 4 To end the call, press the END key after the DTMF transmission is completed and the phone has returned to normal call mode. Note: When recalling a DTMF number from the memory during a call, do not recall it by first entering the location number and then pressing the key, because the location number will then be sent as DTMF tones. 42