While you wait for answers, we may have found some information which could help you.
Click here for Manual Corded PhoneHow can I fix my princess phone, push button 1950s design?
Binatone 1900?
How do I "check the phone cord" ?
can my BTeasIcom 1000 corded telephone be repaired?
RCA 25255RE2 Corded phone?
How do i fix my Freedom Phone FM2575?