Panasonic KX-TD816C User Manual page 121

Conditions
• The number of rings before a call is forwarded can be changed for each extension (except
ISDN extensions / T1 extensions) with program "[619] Extension Call Forwarding — No
Answer Time." If "[619] Extension Call Forwarding — No Answer Time" is not set,
program "[202] Call Forwarding — No Answer Time" will be used.
Programming Guide References
[202] Call Forwarding — No Answer Time
[619] Extension Call Forwarding — No Answer Time
User Manual
Station Features and Operation (DPT/SLT)
121