Hi,
I have found the same
for core router:núcleo enrutador? (can't find enrutador in the dictionary)
VIcky, Voice-over= no es voz en off?
just want to add the definition of VOIP (I didn't know what it was!

)
stands for Voice Over Internet Protocol, a technology that allows you to use the TV cable, an Internet connection, even your electric wires, to make a local or long-distance phone call. The cost of the phone call is very inexpensive…sometimes even free.