Telephone line tones – programming mode, Dialing end signaling, Pin tone – 2N Fixed line replacement with 2N SmartGate - Manual v1.1.2 User Manual
Page 16: Puk tone, Confirmation, Refusal, Saving, Description 2.1

Description
2.1
16
Dialing end signaling
Only
Dialing reception has been terminated. Connection is being established.
PIN tone
Enter the PIN code.
This tone is transmitted upon power up if the PIN has to be entered manually.
PUK tone
Enter the PUK code.
This tone is transmitted upon repeated wrong PIN entering attempts. SIM card
is blocked.
Telephone Line Tones – Programming Mode
Tones confirming/refusing the values entered are transmitted during telephone line
based programming. Each tone has a different melody.
Confirmation
Confirms that the service password or parameter number entered is correct
and has been accepted.
Refusal
Incorrect parameter number;
Incorrect parameter value
Transmitted when a parameter is cancelled with a
.
Saving
Parameter value entered is correct and has been saved