BT 400 - Manual (Page 29)

29
Problem Solutions
Display says PIN • Check that the programming lock
is locked and the key has been
removed
No ring • Check that incoming calls are not
barred – see page 20
• Check that you don’t have too
many phones connected to your
payphone line
Your Payphone Contour 400 has a REN
of 2, check that the total REN of all
your phones doesn’t add up to more
than 4.
Each phone connected to a phone line
uses the signal that comes down the
line. The signal is only strong enough for
a few phones so you need to make sure
you don’t have too many phones
connected to the line. The REN number
is a guide to how much of the signal
your phone uses.
Calls
and
cash
pages
4
–
17
F
eatures
pages
18
–
27
T
roubleshooting
pages
28
–
29
Power loss
The Payphone Contour 400 is mains powered.
If it is unplugged or there is a power loss, only
emergency calls will be possible.
These facilities will not work:
• loudspeaker
• headset
• text phone
• large button keypad
• any equipment connected to the serial port
• backlit display
• incoming calls
2305 c400 User Guide 3.9br 23/10/01 5:22 pm Page 29