phone to phone


  #1  
Old 02-23-08, 09:50 AM
B
Member
Thread Starter
Join Date: Feb 2008
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
Exclamation phone to phone

I am a baseball player in college and we are trying to connect a phone from the dugout to the bullpen which is about 60 yards away and i have no clue what to do and where to start can someone please help me out?
 
  #2  
Old 02-23-08, 10:05 AM
mango man's Avatar
Member
Join Date: May 2004
Location: Sw FL
Posts: 1,990
Upvotes: 0
Received 0 Upvotes on 0 Posts
ringdown circuit is what your looking for

http://www.phonemerchants.com/vikdle22wayr.html
 
  #3  
Old 02-24-08, 11:29 PM
d_s_k's Avatar
Member
Join Date: Mar 2007
Location: Norway
Posts: 407
Received 22 Upvotes on 20 Posts
It is as always depending on what you need etc.

If you just put a battery (9-12V) in series with the 2 phones, the speach will work, but no ringing.

Then you may add on some components to get som way of signalling, or just buy a unit fixing that. (a set of simple walki talkie's will be less expensive, and more flexible)

The simples, and less expensive way of making it you selves is explained here.

http://www.epanorama.net/documents/t..._intercom.html

dsk
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: