Panasonic KX-T7565 - Manual (Page 120)

Operation
120 User Manual
2.7.7 Preventing Your Number Being Displayed on the Called
Party's Telephone (Connected Line Identification
Restriction [COLR])
When receiving a call, you can prevent the caller from seeing your identification number.
This is one of the ISDN supplementary services.
To set/cancel
Off-hook. On-hook.
C.Tone
PT / SLT
Dial 58. Dial 2 to set
or 0 to cancel.
Set
Cancel
OR 5 8
2
0