Panasonic LX-TD500 Programming Manual page 30

Configuration
1.2.8 Card Properties (BRI)
Used to assign the parameters for the BRI (Basic Rate Interface) card.
When you change the card properties, the card status must be "OUS (Out-of-Service)."
Parameter
Default
Value Range
Description/Function
Reference
Parameter
Default
Value Range
Description/Function
Reference
Parameter
Default
Value Range
Description/Function
Reference
30
Network Type
(Display only)
National ISDN1(fixed)
Displays the ISDN type.
None
[DTMF Signal] Duration
80 ms
1.
80 ms
2.
160 ms
Specifies the duration of the DTMF signals sent to ISDN.
None
[DTMF Signal] Inter-digit Pause
112 ms
64-240 ms in 16 ms increments
Specifies DTMF inter-digit pause time.
None
Programming Guide