I am so confused. I currently have an Arris TG1682G modem and I have Triple Play. We have the plan with the 150 mbps download speed. We use the phone and WiFi as well as the direct Ethernet connection. I want to buy my own modem and WiFi router but I can't seem to find a modem with a telephone jack. Can anybody help me with this? Thank you!
FWIW, there *may still* be one caveat to owning your own eMTA or gateway device that supports their phone service. YMMV. I always advise (until I'm told otherwise officially) that the first thing you should do is to call in or go to your local CC service center (the better choice) and inquire / confirm as to whether or not customer owned eMTA's (modems with phone support) are allowed to be used on the local system. Some local franchises still do not allow it and require you to rent one from CC. The personnel that work there seem to better know what the actual local franchise's policies really are than do support reps at the national 800 number.
If allowed, there are five devices available at retail that they will activate for service are the Arris TG862G, the Arris SVG2482AC, the Netgear C7100V, the Arris TM822G, and the Arris TM722G. The 862 is a combo cable modem / router / eMTA gateway device but it is a piece of junk. But it can be put in to bridge mode so that it acts only as a cable modem with phone support. You would the use your own high quality stand-alone router with it.
The SVG2482AC and the C7100V are much better performing combo gateway devices that offer 24 downstream channels. The 822 is an eMTA that offers only 8 downstream channels. The 722 is an older eMTA that offers only 4 downstream channel bonding capability so it won't be able deliver their fastest speed tiers like 150 and faster. They are hard to find as they are not being manufactured anymore.
I'd be tempted to go for this recently approved eMTA (voice/internet) only and get a good router to go with it. The Netgear CM500V. Although only 16 downstream channels, It would be good for up to their current Extreme 300 tier. The two 24 downstream channel gateways are quite expensive and the CM500V may be even cheaper than the 8 downstream channel Arris TM822G/R.
Then again, you may be better waiting to see if they bring out a DOCSIS 3.1 capable voice device. (no idea when or if they will though).