Yealink SIP-T22P User Manual page 45

Forward

Transfer

Hold

DND

Redial

SMS

Group Listening

For more information, contact your system administrator.
Speed Dial
You can use this key feature to speed up dialing numbers often used or hard to
remember.
Dependencies:
Usage: Press the DSS key to dial out the number specified in the Value field, using the
account selected from the Account ID field.
DTMF
You can use this key feature to send the specification of arbitrary key sequences via
DTMF .
Dependencies:
Usage: Press the DSS key during an active call to send the key sequence specified in the
Value field.
Note
DTMF sequence is allowed to be: "0-9", "*", "#" and "A-D".
Prefix
You can use this key feature to dial a call with a specified prefix number.
Dependencies:
Usage: Press the DSS key when the phone is idle, the phone will be ready to make a
new call and show up the prefix number which you specified in the Value field, enter
other digits and then dial out.
Type (Speed Dial)
Value (the number you want to dial out)
Account ID (the account this feature will be applied to)
Type (Key Event)
Key Type (DTMF)
Value (DTMF sequence)
Type (Key Event)
Key Type (Prefix)
Value (the prefix number)
Customizing Your Phone
35