D-Link DPH-850S User Manual page 67

Memory Key Management
 Editing Memory Key
Open your "Memory Key", touch & hold a null button, then touch "Edit".
Add a contact name, number, call the line (SIP1/2/3/4), and call type (video /
voice). When you are finished, touch "OK".
 Deleting Memory Key
Open your "Memory Key", touch & hold the button you want to delete, then
touch "Delete". When you are finished, touch "OK".
 Dialing With Memory Key:
Open your "Memory Key", touch & hold the button you want to dial, then
touch "Dial".
The figure:
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