SPC 3604N, User Manual, Page: 10 / 11

10
FLASH FUNCTION
When dial a number, but the line is busy, press the R/÷ key and then press RLL key to dial it out
again.
PAUSE FUNCTION
When dial a number, press PAUSA key, the unit will give a 3.6 seconds interval between the
numbers.
KEY TONE FUNCTION
1. In on-hook state, press and hold key 3 seconds, key tone is active when hearing “di”
voice.
2. Press and hold key 3 seconds again, key tone is inactive when hearing “di” voice.
CALCULATOR FUNCTION
In on/off-hook state, press key, LCD displays 0- , the unit is in calculator state.
The unit is available for operation of “ +.-.×.÷ ”, in the calculator state, #/= key is used as “ = ” and
the
*/.
key is used as “ . ”, and R/÷ are used as
×
and ÷ respectively.

/+ or

/– key is
used as sign of positive/negative.
Eg.1 (10+26) ÷2
1. In on/off-hook state, press key
2. Press ( 1, 0, +, 2, 6 ), ÷, 2, #/= keys
3. After calculated, press MENU key to quit.
Eg.2 0.5× 0.6-1
1. In on/off-hook state, press key
2. Press 0,
*/.
, 5,
×
, 0,
*/.
, 6, -, 1, #/= keys
3. After calculated, press MENU key to quit.
NOTES
Please unplug telephone line when install or replace batteries.
TROUBLE SHOOTING
? No voice
+ Check if the handset is on the phone or line is broken.
? Receive only
+ Check if P/T mode is properly set.
? Battery rust or leak
+ Remove the rust or wipe out the leaking liquid.