Yealink SIP-T20 User Manual page 51

Speed Dial
You can use this key feature to speed up dialing the numbers often used or hard to
remember.
De pendencies:
Us age: Press the DSS key to dial out the number specified in the Value field, using the
account selected from the A ccount ID field.
Voice Mail
You can use this key feature to connect voice mail quickly. For more information, refer to
Voice Mail on page 92.
De pendencies:
Us age: Press the DSS key to dial out the voice mail access code, you can follow the
voice prompt to listen to the voice mails.
DTMF
You can use this key feature to send the specification of arbitrary key sequences via
DTMF.
De pendencies:
Not e
DTMF sequence only contains "0-9", "*", "#" and "A-D".
Usage: Press the DSS key during an active call to send the key sequence specified in the
Value field.
P refix
You can use this key feature to add a specified prefix number before the dialed number.
De pendencies:
Us age: Press the DSS key when the phone is idle, then the phone will enter into the
dialing screen and display the prefix number which you specified in the Value field. You
can enter other digits and then dial out.
Type (Speed Dial)
Account ID (the account this feature will be applied to)
Value (the number you want to dial out)
Type (Key Event)
Ke y Type (Voice Mail)
Account ID (the account this feature will be applied to)
Value (the voice mail access code)
Type (Key Event)
Ke y Type (DTMF)
Value (DTMF sequence)
Type (Key Event)
Ke y Type (Prefix)
Value (the prefix number)
Customizing Your Phone
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