If there running, they will probably be located in your task bar by the clock. Right click the icons and you should have the option to exit. This doesn't resolve the problem, it is just temporary. I really don't recommend p2p programs. Utorrrent I believe is set to automatically start with your computer, and the others may be as well.
I learned this from experience when one of daughters was running it and I couldn't figure why my router was being pinged constantly. It was uninstalled by me rather quickly.
You probably have an option in the programs, to disable starting when Windows start. You need to not have them in your Windows startup running every time the computer is turned on.
The real answer is not to use them, just uninstall them, but I don't tell people what they can and can't use. It's your choice.
Some of your pinging could be the VOIP service, don't know for sure.
With your single modem/router configuration, you pretty much have to be behind the router and it's firewall. Sorry I missed where you posted your modem/router model in the previous post.
Pretty much what you need to do and I have used VOIP with this is to setup a Port forwarding on your router. This will allow your phone service to be outside of the the firewall and filter it to your Ooma hub. I would do this before putting in the DMZ setup.
6.1.2 Port forwarding Page 55
http://setuprouter.com/router/technicolor/tc8305c/manual-1246.pdf
You need to know the Ooma hubs ip address and which ports to unblock. That means going into the setup page for Ooma Hub and setting a
(static) permanent ip. There telling you to set a static IP for the Ooma, a IP address that never changes. The UDP/TCP is going to be like starting 53 and ending at 30000. This allows the VOIP to run without the firewall interfering.
An example of a router is IP 192.168.0.1, than your sub IP addresses would be 192.168.0.2 to 192.168.0.100 This is where your computers wired or wireless connect to. You have to set the Ooma Hub to say for example to a static IP address 192.168.0.60 this means it will always connect at that IP address. I don't know what your IP addresses are specifically.
http://support.ooma.com/home/advanced-connections-and-service-ports
Run your computer directly to the router, not the Ooma hub if you use port forwarding.
It's not as complicated as may think, the settings have to match.