Panasonic KX-T336 System Reference Manual page 1264

The following table shows the default values for Group-II and Group-B signals.
Forward Signal
No. Group-I
01 Digit [1]
02 Digit [2]
03 Digit [3]
04 Digit [4]
05 Digit [5]
06 Digit [6]
07 Digit [7]
08 Digit [8]
09 Digit [9]
10 Digit [0]
11
12
13
14
15
Note:
• When a Group-II signal for Subscriber is sent from CO:
KX-T336 decides the extension to be called by analyzing this code, and sends the status code of the
extension to CO. If the extension is idle, KX-T336 will ring it.
• When a Group-II signal for Operator is sent from CO:
KX-T336 always sends "status code = idle" to CO and it will ring the operator extension (or attendant
console).
• "Out of Service Code" and "Set up Speech Code" can be assigned using MRO command
(Section 64.08).
Group-II
Group-A
Next digit
Subscriber
Digit completed
Congestion
10-C-115
(70695)
Backward Signal
Group-B
Idle
Busy
Unallocated
Congestion