4 telephone port modem?


#1

I have an old comcast cable modem with 4 telephone ports and would like to upgrade modem and keep all four analog phone line
What would your recomendation be for the modem and voice upgrade be. no longer is 4 port modem available.
would like to purchase my own modem or modems
would a grandstream ht 814 work with xfinity


#2

Is the way its being delivered going to change?
Is it currently being delivered over copper or fiber?


#3

I’m just curious why you want to use an old modem with built-in ports that you’ll have little control over versus using a newer modem with (probably faster speeds and) an HT device you have full control over?


#4

You have a couple of choices and it depends projected growth of the customer and your thoughts going forward…

A good replacement with growth in mind would be a HT814 which offers 4 x analogue extension ports - line hunt, single registration of SIP service, Caller ID, Wan to Lan connection pass through at Gigabit rates and is at keen price point.
http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors

Now Xfinity use Comcast as a way of providing their own delivery of TV, Phone via Softphone APP and Cordless technology if you use their equipment which begs the question, are you looking for a replacement to Xfinity’s phone service?

If you want to replace Xfinity’s routers then look at Comcasts hardware approved modems - https://business.comcast.com/help-and-support/internet/comcast-business-cable-modem-device-compatibility

Comcast SIP trunks can be acquired direct:
https://business.comcast.com/learn/phone/sip-trunks

The Grandstream GWN7000 would work well if you purchase a low end coaxial to ethernet modem and plug the GWN7000 behind it for routing protection.
http://www.grandstream.com/products/networking-solutions/gigabit-routers

The Grandstream devices - Dect cordless telephones are very good which can operate using SIP from Comcast:
http://www.grandstream.com/products/ip-voice-telephony/dect-cordless

Same can be said for the Grandstream WiFi units although new on the market are also desirable and works with the Grandstream WiFi devices:
http://www.grandstream.com/products/ip-voice-telephony/wifi-cordless

Grandstream WiFi units are robust, and work as needed:
http://www.grandstream.com/products/networking-solutions/wifi-access-points

All the above from the Grandstream selection is SIP friendly, works well, and provides a stable environment and platform.

So you have come to the right place for ideas and recommendations.

:slight_smile:


#5

Such a lazy poster, that @scottsip. :slight_smile: