I’ve had that comcast modem for several months and you are so right, it is a monster.  Good God, is there a little person inside there throwing switches?

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I’m thinking about getting this. Does it have telephone jacks in the back so I can plug a phone right in, or will I have to run wires from the new modem to my telephone wall jack?

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I’m a Tech support rep that supports those VO-IP modems, they’re big because of the battery back-up, so if the power goes out you’re not with out a phone it lasts up to about 8 hours, cya later

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So that modem has 2 battery backups in it for 911 usage if the power goes out.  That is why it is so big.

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well yeah its kinda dumb because if the power goes out in the area, there won’t be any power going to the poles in the area either, so in the slim chance that only you or a couple other people near you and the street poles still have power, you can make and receive calls for about 6-8 hours, depending on phone usage.

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What model is this modem? I need to get one .

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The one on the left is a Motorola Surfboard 5100, and the one on the right is a Motorola TM402G Arris Touchtone mdm.  I would check with your service provider first, because with us you just can’t go out and buy one thinking its gonna work.  People buy the 5100 from walmart or something like that and think its just gonna hook right up.  Then it doesn’t so the call us and complain.  It really tweaks us off to no end when ppl do that.  But thats why i said to check with your ISP, they may be different.

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I have a Motorola SRV5220 telephone modem.
Can I plug in and use any ppg service (I do not have comcast voice, just have the modem) over my Comcast connection?
Will that work?

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