VOIP phone to mixer?

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iStudio

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Hey all, I'm new here but not new to this industry. Just came across this board and hope to become a part of the family more and more as I post and read.

I have a fun question...

How would you make a Gentner Telephone Hybrid, Studio Mixer and VOIP telephone work together to converse to the caller from the microphone through the mixer.

Any ideas how I could do this?

Thanks!
Barry C.
iStudio Interactive
 
The voip has nothing to do with it, the hybrid would work with the board the same way it always does.
 
The biggest thing I am wondering about is actually hooking up a VOIP phone to the hybrid since it is an ethernet line that comes to it rather than a POTS line.

The equipment is:
Cisco Systems IP desk phone
Gentner GT300 analog telephone hybrid
Behringer Eurorack mixer

I am planning to use these together for a talk radio show I need to start hosting in a month, but not really sure how these would connect together.

Barry C.
iStudio Interactive
 
Doesn't the hybrid connect between the phone and reciever. (some of them don't, some do)
 
ok..so you're wanting to use the hybrid to pick up the phone's receive and transmit and take that to your mixer right?

The concept is pretty straight forward. I'm not familiar with any of the products you're planning to use but, I would be sure that you have access to the TX and RX audio. Many digital telephones don't send simple audio out of the jack, you'll need to make sure that you can "get at it" somewhere.

Years ago, I worked on a digital 911 telephone system which required full duplex recording. We used a hybrid but be could only get at the audio from the handset. We had to interrupt the handset cords, tap the audio and send to the hybrid.

Something to consider...if you have access to the TX and the RX audio, if you had two separate available mixer inputs, couldn't you just use two channels and forget the hybrid? Let the mixer do the summing.
 
Farview said:
Doesn't the hybrid connect between the phone and reciever. (some of them don't, some do)
Click to expand...
This hybrid connects between the line and the phone.

The connections on the VOIP phone are RJ45 from router & RJ45 to the PC. There is a telephone input on the phone next to the RJ45 connections on there but I didn't get any signal from that when plugging it into the hybrid "phone" or "line" inputs.

punkin said:
ok..so you're wanting to use the hybrid to pick up the phone's receive and transmit and take that to your mixer right?

The concept is pretty straight forward. I'm not familiar with any of the products you're planning to use but, I would be sure that you have access to the TX and RX audio. Many digital telephones don't send simple audio out of the jack, you'll need to make sure that you can "get at it" somewhere.

Years ago, I worked on a digital 911 telephone system which required full duplex recording. We used a hybrid but be could only get at the audio from the handset. We had to interrupt the handset cords, tap the audio and send to the hybrid.

Something to consider...if you have access to the TX and the RX audio, if you had two separate available mixer inputs, couldn't you just use two channels and forget the hybrid? Let the mixer do the summing.
Click to expand...
Hey, I'm cool with doing that! :) Could you elaborate a little more on what the TX & RX audio would be...I'm willing to try anything.
 
Again, I'm not familiar with the products you're using. The RJ45 between the phone and the computer may or may not have audio on it...What are you plugged into on the computer side? Is it a special card or what?

The second idea I offered assumes that you have an RJ type handset cord between the handset and the telephone base unit. In this cable would be TX audio (Mic) and RX audio (ear piece). This cord would be easy to get into with a break out box (available at most electronic hobby type places...RadioShack). To pull the audio off of these circuits, an isolation device/transformer would be advised. This will prevent you from loading the telephone audio circuits and maintain impedance matching.

Here are a few resources....what you're wanting to do really isn't all that complicated. Its just a matter of what's your budget, getting to know the equipment you're working with (the telephone and how to get at the audio).

http://www.epanorama.net/documents/telecom/telerecord.html
http://www.jkaudio.com/voice-path.htm
http://eugraph.com/record/
http://www.macintouch.com/readerreports/audio/topic2100.html
http://www.audiotheater.com/phone/phone.html
 
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