But I'm literally 100% confident given your description, that you are perceiving it as people using "cell phones" to replace VoIP, and not realizing that it's standard VoIP softphones being deployed onto mobile computing devices that are often, but not required to be, cell phones.
We have cisco everything and I was told it was too expensive to have softphones on our cell, we instead must have a separate cell phone. I doubt that, but who knows.
And yet it wasn't too expensive to have Cisco... suspicious.
The point was that it is cheaper to buy pre-terminated fiber in the lengths needed instead of buying fiber and getting it terminated.
Not that does not apply universally. It does apply for most office buildings.
Where he is, I have random conversations with people who are like "Oh yeah, I trenched across town myself." Things you never hear here. There is actually a lot of self termination, lol.
In network almost every core device (routers, switches and servers) may be NTP Master or Server. It depends on network design who will be the NTP Master, for me is the device which is "closest" to Internet.
Do the frequencies used self modulate within the router? What I'm wondering is if when setting up a dsl connection if it automatically defaults to a specific frequency or is it constantly switching.
DSL is the wired bit. Wifi is from the access point. And this will depend on the protocol chosen. 802.11 b for example requires thebfrequency be set.
Did I understand him correctly saying there are still ring networks used by metropolitan areas?
Resilient fiber networks frequently have two fibers - one going in each direction. It's often called a fiber ring.
But should not be, that's not a ring.
Yes, it is. Looks like this for example:
alt text
Network topology is a ring. But it's still good ol' ethernet.
I believe each blue line is a bidirectional link. So that each switch has two incoming links and two outgoing links. This type of topology is very common for a backbone where you have long distances. While a full mesh network is more resilient it requires a lot more fiber.
