The following pages link to On- and off-hook:
Displayed 1 item.
- On-hook (redirect to section "On-hook") (← links | edit)
- Telephone switchboard (← links | edit)
- On- and off-hook (← links | edit)
- Ringdown (← links | edit)
- Single-frequency signaling (← links | edit)
- Telephony Application Programming Interface (← links | edit)
- Answering machine (← links | edit)
- Index of electronics articles (← links | edit)
- Hayes Microcomputer Products (← links | edit)