Thanks to all that have replied.
I am looking at getting one from test equipment depot.
https://www.testequipmentdepot.com/...one.htm?gclid=CMnjydaW6JsCFSENDQodkFgX5A I haven't order from these people before. Anyone know of them or have any comments on what they think of them.
To igadget, voip isn't a protocol. Tcp-ip is a protocol. Voip is a enhancement to telephoney on a digital network, using the customer network equipment. Just like rj45 plugs/jack are standard hardware arrangement to hook up network gear together.
What I was referring to was when one tries to tone on an active network jack, the signal can be reduced or lost because of the cable connected to a network gear. With the avent of poe switchs/injector, it is possible to try to trace out wiring that has voltage on. This could damage the toner or poe switch/injector. It is also possible to have bleed over to other network wiring/legs that could interfer with normal network traffic.
I was looking for a device that would allow me to trace wiring on a network with no fear of causing problems with the network.
Splittign the pairs on a network connection, can cause voltage from a poe switch to come together and cause damage.
Thanks again to all that have answered.
Mike