Hello
I have a 312F call exchange telephone.
I have rewired it as per instructions at this link:
https://www.britishtelephones.com/pstconv1.htm#312
Remove strap T10 - T11.
Remove strap T12 - T13.
Insert a 3.3K ohm resistor between T11 & T12.
Link all the following terminals together T1 - T2 - T3 - T9.
Red of line cord to T8.
White of line cord to T1.
Blue of line cord to T11.
Green of the line cord is spare and can be parked on T7.
Rectifier No. 205 (if needed) inserted between T6 & T5
For step 4 I put a strap between 1 and 2, wire between 2 and 3,
and wire between 3 and 9
It dials out and can be dialed into
However there is a problem where every time I dial out the bell rings. So as the dial returns it will ring according to the number dialed shorter for 1 and longer for 0 etc.
am sure this is a wiring problem but wracking my brains as to what can be causing it - Can anyone help
Many thanks for reading