Search found 2 matches
- Thu May 01, 2003 5:09 am
- Forum: General Discussion
- Topic: How to wire telephone as an intercom circuit
- Replies: 6
- Views: 3043
Re: How to wire telephone as an intercom circuit
For my purposes Chris Smiths suggestion seems to be closest. I have a ready supply of old phones that can't be used on the university PBX. I should have mentioned that the observer needs to speak privately to the interviewer which is why a standard intercom is not an option.
- Wed Apr 30, 2003 9:23 am
- Forum: General Discussion
- Topic: How to wire telephone as an intercom circuit
- Replies: 6
- Views: 3043
How to wire telephone as an intercom circuit
I need to link an observation room (one way glass ) to the other side via a direct wired phone. This will not connect to any external phone system. Just two regular phones, a power supply, and whatever else is needed to generate the ring tone. I thought I had seen a diagram to do this years ago I wo...