Comcast is a major cable and telecommunications company in the United States. They provide services to over 22 million customers in over 26 states. Comcast Voice is one of their many voice services that they offer.

Comcast Voice allows subscribers to make calls using their home phone numbers, even if they are not with Comcast. This service also gives subscribers the ability to call other Comcast Voice subscribers, as well as calls to landlines in other countries.

One common question that subscribers have is whether or not their phone jacks will work with Comcast Voice. In this article, we will answer this question and more!

What is Comcast Voice?

Comcast Voice is a new VoIP service that allows Comcast customers to make and receive calls over the phone using their broadband connection. The service is available starting at $5 a month for voice and data, with no contract required. You can also use Comcast Voice to call landlines and cell phones.

How does Comcast Voice work?

First, you need to sign up for a free account at This account will let you create your own personal phone number and set up your voicemail.

Once you have an account, you can start making calls by going to and entering the number of the person you want to call in the search bar. You can also call any landline or cell phone in the United States using Comcast Voice.

What are some features of Comcast Voice?

Some of the features of Comcast Voice include:

  • No contracts
  • Calls to any number in the U.S.
  • No long distance charges
  • Unlimited calling time
  • Call waiting (if your caller is on another call)
  • Caller ID blocking

Will All the Phones Work with Comcast Voice?

If you are looking to cut the cord and switch to cable television service, then you may be wondering if your old phone will work with Comcast voice. In fact, many people are not sure if their old phone will even work with Comcast voice at all. Luckily, the answer is yes – most phones will work with Comcast voice. However, there are a few exceptions.

The first exception is Apple products. Apple products do not support Comcast voice because they use their own proprietary technology. If you have an iPhone or an iPad, then you will need to switch to another provider. Fortunately, there are many other providers that offer voice services compatible with Apple products.

The second exception is Sprint phones. Sprint does not support Comcast voice because they do not have their own network. If you have a Sprint phone, then you will need to switch to another provider. Fortunately, many other providers offer voice services compatible with Sprint phones.

The final exception is VoIP phones. VoIP phones do not support Comcast voice because they rely on the internet to function. If you have a VoIP phone, then you will need to switch to another provider that offers voice services compatible with VoIP phones.

How to Troubleshoot Comcast Voice Issues?

If you are experiencing problems with Comcast Voice, there are a few things you can do to troubleshoot the issue. First, make sure that all of your phone jacks are properly plugged in and working. If you are still having issues, try resetting your Comcast Voice account by calling customer service and following their instructions.

What do you get when you subscribe to Comcast?

If you’re like most people, you probably pay your cable company for a bundle of services, including high-speed internet and phone service. But what if you want to hook your Comcast phone line up to your streaming service? Turns out, not all the phone jacks in your home will work with Comcast.

Here’s a quick rundown of the different types of phone jacks and what they work with:

An RJ-45 jack is the most common type of Ethernet connector, found on computers and networking equipment. These ports are most commonly found on the back of routers and other networking devices. They’re also commonly used for connecting wired networks to each other.

RJ-11 ports are typically found on telephones and other analog devices. Most residential phones use RJ-11 ports, but some newer phones use USB-C ports. These ports don’t connect to networks; they’re just for using a single phone line with multiple devices.

The two most common types of voice port are the 3.5mm mini jack and the RCA jack. Most headphones and speakers use mini jacks, while older TVs often have RCA ports. (Most new TVs have a HDMI port instead

Will Each And Every Phone Jack Be Capable Of Supporting Comcast Voice?

The answer, unfortunately, is that not all the phone jacks found in homes will be compatible with Comcast Voice.

Specifically, the telephone Jacks that are most commonly used for home phone service are not compatible with Comcast Voice. These particular phone jacks only support analog signals and are not capable of supporting digital signals like those used by Comcast Voice.

If your home does not have any of the traditional phone jacks, then you may be able to use some of the newer phone jack designs that are specifically made for high-speed data and voice services. However, even these types of phone jacks may not be compatible with Comcast Voice since they do not support analog signals.

In order to use Comcast Voice with your home telephone, you will need to purchase a special adapter or converter. This adapter will allow you to connect your telephone to the appropriate jack on your cable modem or router.

How Should It Be Setup?

Setting up a VoIP phone system with Comcast can seem daunting, but it’s really not that difficult. In this article, we’ll show you how to set up a basic voice system with Comcast using their voice over IP service.

First, you’ll need to sign up for a Comcast Voice account. This can be done online or over the phone. Once you have your account setup, you’ll need to determine your needs and configure your settings. You’ll need to decide whether you want to use the landline or cellular connection for your calls. You can also choose whether or not to use caller ID lookup and voicemail.

Next, you’ll need to determine which phone jack to use. Most of the time, you’ll want to use either the RJ-11 jack on the wall or the RJ-45 jack on the back of your modem/router. Make sure that your modem/router is configured for VoIP and that it supports noise reduction (NRC). If you’re using a cordless phone, make sure that it supports VoIP and that it has an RJ-11 jack.

Now, all you have to do is configure your telephone numbers and voIP is set.


Although it seems like every phone jack these days comes with a “Comcast Voice” certification, this is not always the case. In fact, there are a few phone jacks out there that are not compatible with Comcast voice. If you live in an area where Comcast is the only provider, then using their voice services will be the only option for you. However, if you have access to other providers (such as Time Warner or Verizon), then using one of those providers might be a better option for you.