Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Is it compatible with Comcast? And is it modem+router in one unit?
Document: The D-link Modem + wireless router works excellent with excellent wireless range, setting it up was not too bad it just took a little configuration and the wireless setup was not bad either. I purchased this D-link because of the all in one aspect and so far has worked exceptional, the only thing that I found that I do not like is how warm the unit gets.Other than that I would recommend the D-Link DSL-2640B
I love the small design and that it has both the DSL modem and the router built in to one unit. It also has the guest wireless option to where you can turn on a 2nd wireless network for guests to access which will leave your regular secure network alone and separate from all of your other devices.I have had this running now for about a month and like I said it is running like a charm and I would recommend this product to anyone who is looking for a new DSL Modem/router combo.
I bought this modem because the one provided by my ISP was a cheap chinese ADSL router that would disconnect every 24 hours or so, so I had to reset it so it could work again.Since i switched to this modem I've had a solid and constant connection, it has plenty of features, I flashed my firmware with the UK version which looks way better and has more features and works great. One thing I don't like about this unit is that it does run pretty hot. Other than that its good!
Decided to replace an aging DSL modem from Verizon and Linksys wireless with one unit. The system was easy to install and setup. I've seen a significant improvement in download speeds.
I was so glad to get rid of having a separate cable modem and wireless router. I like that this unit does both and it was easy to get up and running.
I have AT&T; Yahoo internet service, and this D-Link modem and router combo works great for me. It replaced my old 2wire unit that finally gave up the ghost.Pros:It works. I've been using it for a week or two and there are no problems at all. Both the wired and wireless are working with no trouble. That's just the way it should be.
I bought this product to replace the cheap little DSL modem that AT&T; provided with their service, and theD-Link Wireless DIR-615 N Router, 4-Port 10/100 Switch, 2 Antennas, Draft 802.11nwhich has been very reliably handling my home wireless network for the past three years. This unit was very easy to set up.
I have used several DSL modems. This one was easy to setup. I wish it came with more in-depth instructions. The unit does get warm, so use a small fan.
I installed this dsl unit and the maximum it gave me was 1mb; I installeed the older one that I had and it gives me upto 3mb.I tried to play with the setup but it did not help.I would not recommmend it.
I tried several Netgear models before using this one. They randomly dropped the connection for 1 or 2 computers while others working fine. I don't have this problem after using this one. This one works much more reliable. ** This unit worked for 13 months. ** Just after the warranty period, it dropped the line after heat up. You turned it off and let it completely cool down, then turned it on, and it worked again.
Answer: If Comcast uses cable signal (with a coax connection), then no. This is for DSL; so it needs a landline-type connection - though you don't usually need a landline account. We used it with AT&T; dsl. And yes, it is a modem and router all in one. Takes in the signal and pushes it out too. :-)