Step 1: Plug in your modem:
Just plug it in! A green light should come on.
Step 2: Go to your terminal and type in "dmesg | grep ACM0". You should see something like this:
[ 1987.756457] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1987.756460] usb 1-1: Product: USB HSF Modem
[ 1987.756462] usb 1-1: Manufacturer: Conexant Systems, Inc.
Personally, I think that IRC is very comfy to use. It's nice to see so much messages and channels in a very text-based chat.
This is all I have to say for now, might update this later with some more info about IRC.
You can join the #general channel and the #general-shitcord channel for retarded conversations about different topics.
If you don't know anyone ask rnb, IdotMaster or phrl for help
Thanks for reading!