Use switch to send both internet and phone

bobby2478

Honorable
Jul 24, 2012
19
0
10,510
I have 2 Ethernet lines running from my mechanical room to my office, which is where I'd like to house my main router. In my mechanical room in my basement I have my Cable Modem as well as my main switch as this can then feed every ethernet port in the house. I have Comcast for phone and internet, and my Cable modem right now is set as the DHCP router.

Right now I'm using 1 of these lines as a phone line (hooked up to phone service in the mechanical room), the other has my cable modem (DHCP router) feeding a switch, which then runs to every port in the house, one of which is my Asus Router (set as an AP to not overlap DHCP with my cable modem).

So right now it looks like this:
Line 1: Cable/Phone Modem (Router) -> Switch -> Wireless Router (AP)
Line 2: Cable/Phone Modem -> Fax

I don't like using my cable modem as a router, however with only 2 lines to my office, I'm limited in the options available. Ideally I'd have 3 Ethernet lines, so 1 could run directly from my cable modem (which would have router turned off) to my Asus Router, which would be my only DHCP router then. The 2nd line could run from the Asus router back down to the switch, which then feeds all ports. The 3rd line would be phone line for my fax machine. However I only have 2 lines and since my mechanical room and office are on different floors it isn't easy to add a new Ethernet run.

Are there any creative ways using a switch that I could get the end result I want with only 2 Ethernet runs between floors? Or is my only option to have a router in the basement next to the modem, which feeds the switch, which then feeds every port in the house? I wanted to try to avoid this as the router in that room would be less than worthless for signal since it's in a back corner in the basement surrounded by metal ductwork etc.
 
Solution
So you cant use a switch to distribute phone signal. Phone uses up to 30v DC, is analog, and is a point to multipoint connection. Etherent is 5vDC, digital, and point to point with a very specific data structure in order to keep track of intended recipient.

As bigwoofer said, ideally you should be connecting your phone to the house system. You dont even have to connect it to your box, any phone jack can be an input so simply plugging it into a phone jack will distribute it throughout your house phone system.

Is there a good spot for your router that has 2 ethernet jacks?
You dont per-say need 3 jacks at your ISP combo router, but you do need 2 jacks at your router.
If your setup allows it you can take line 1 that goes to the...

bigwoofer

Honorable
Aug 14, 2013
355
2
10,960
The optimal setup would be to run a new cable OUT of the modem that supplies POTS (plain old telephone service) to the PHONE BOX outside your home - that will supply your whole house via your regular telephone outlets with POTS service. Can you get a cable from your modem to the phone box outside your home?
 
So you cant use a switch to distribute phone signal. Phone uses up to 30v DC, is analog, and is a point to multipoint connection. Etherent is 5vDC, digital, and point to point with a very specific data structure in order to keep track of intended recipient.

As bigwoofer said, ideally you should be connecting your phone to the house system. You dont even have to connect it to your box, any phone jack can be an input so simply plugging it into a phone jack will distribute it throughout your house phone system.

Is there a good spot for your router that has 2 ethernet jacks?
You dont per-say need 3 jacks at your ISP combo router, but you do need 2 jacks at your router.
If your setup allows it you can take line 1 that goes to the switch and disconnect it from the switch and daisy chain it to jack 1 at your router, then have jack2 from router feed the switch.
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Otherwise you will either need to find a differnet phone jack to tie into yoru home system, have to run an ethernet line between modem/router (if you dont have drywall ceiling in basement this is not that hard), or have to use powerline adapters between the modem and router (least ideal for sure).
 
Solution
Providing that your Internet service is 100mbps or less, you can use the cable from modem to router for both Ethernet and phone (100mbps Ethernet needs two pairs, and you have another two available for phone). There are ready-made splitters available for couple of bucks.