-
-
- Connect the VoIP phone handset to the base station.
(Skip if your handset is connected to your phone) If the handset has a cord, connect it to the RJ-9 phone jack on the back of the phone. There may be two jacks, one for a handset and one for a headset. Make sure to connect the phone line to the correct line jack for proper voice transmission. If it is a cordless phone, place the handset in the base station and let it charge. And, if the handset requires batteries, put the batteries in the handset. - Connect an Ethernet cable to the desktop phone.
You should see an Ethernet port on your phone’s base station. Connect the Ethernet cable that came with your phone to the port. This ethernet port is designated with an “internet” or network icon. Most VoIP phones offer an Ethernet pass-through option. This allows you to connect another device, such as a computer, to your phone, so you only need to use one port on your router to connect two devices. If you wish to use this option, connect your computer’s Ethernet cable to the port on the base station that says “PC” or something similar. - Connect the Ethernet cable to the router or modem.
Most home routers and modems have four numbered Ethernet ports on the back. So, plug the Ethernet cable from your phone to any of the ports on the back of the router. Also, if you have a network switch that gives you more Ethernet ports, plug the ethernet cable from the phone into an available port on the ethernet switch. - Power up the modem and router.
If you have a separate modem and router, first plug in the modem. Then wait 30 seconds for it to resync with the network. Then plug in the router and wait 30 seconds. - Connect the AC adapter to the VoIP phone.
The AC adapter is the cord you plug into an electrical outlet or power strip. Look for a port on the back of the phone that matches the size and shape of the AC adapter input connector. If you have a Power over Ethernet feature for your home network, you will not need a power supply, as the network cable is the power source.
- Connect the VoIP phone handset to the base station.
-
-
Examples
Example 1:
- If you want to connect both your VoIP phone and your computer to the same Ethernet line, plug the Ethernet cable from the wall or switch into the phone’s “Internet” port, then use a second Ethernet cable to connect the phone’s “PC” port to your computer. This way, both devices share the same network line efficiently.
Example 2:
- If you want to connect both your VoIP phone and your computer to the same Ethernet line, plug the Ethernet cable from the wall or switch into the phone’s “Internet” port, then use a second Ethernet cable to connect the phone’s “PC” port to your computer. This way, both devices share the same network line efficiently.
Testing the Connection
-
-
- Finally, check an outbound call.
When you see the screen turn to the standard home screen, make a test call.
- Finally, check an outbound call.
-
Router |
Modem |
Ethernet Cable |
|---|
Note for customers: Before you purchase any Ethernet adapters or cables, check if the items are in stock to avoid delays. Reading customer reviews can help you choose reliable products and make a confident purchase.
If you need to connect mobile devices or smartphones to Ethernet, read on for specific instructions.
Connecting Mobile Devices to Ethernet
Some devices, like iPhones, iPads, or certain tablets and laptops, may not have a built-in ethernet port. In these cases, an ethernet adapter or adapter cable—such as a USB-C to ethernet adapter—can bridge the gap, ensuring your device can connect directly to your network for stable internet access. Always check that your adapter is compatible with your device and supports the necessary data speeds for smooth call quality.
To connect a phone to the internet using an Ethernet cable, you need an Ethernet-to-USB-C or Ethernet-to-Lightning adapter, depending on your device. RJ45 Ethernet cables are designed for wired networking and provide secure, high-speed connections, while RJ11 cables are used for traditional telephones. Using Ethernet with a smartphone requires a compatible adapter, such as USB-C to Ethernet or Lightning to Ethernet.
Next, let’s clarify the differences between Ethernet cables and traditional phone cables to ensure you select the right cable for your setup.
Ethernet Cables vs. Traditional Phone Cables
-
-
- RJ45 Ethernet cables are designed for wired networking and provide secure connections with high-speed data transmission, making them suitable for home and office internet setups.
- RJ11 cables are used for traditional telephones and are not suitable for networking VoIP phones.
- The RJ45 connector has 8 pins, while the RJ11 connector used for telephones has 6 pins, reflecting their different applications in networking and telephony.
-
Now that you know which cable to use, let’s discuss how to obtain the right Ethernet cable for your VoIP phone.
A Note on Routers
If you haven’t upgraded to a new wireless router in a few years, you might want to seriously consider it. That old router may still be working, but newer ones will give you better Wi-Fi and, therefore, higher-quality VoIP calls. Also, check that the firmware on your router is up to date.
With your router ready, the next step is to ensure you have the correct Ethernet cable for your VoIP phone.
Obtaining Ethernet Cable
RJ45 Ethernet cables are designed for wired networking and provide secure connections with high-speed data transmission, making them suitable for home and office internet setups. The RJ45 connector has 8 pins, while the RJ11 connector used for telephones has 6 pins, reflecting their different applications in networking and telephony.
Press8 Telecom does not sell Ethernet cables, but they are widely available from major online retailers such as Voipsupply, Amazon, or New Egg. The specifications are RJ45 Cat-6 Ethernet Patch Internet Cable, which comes in different lengths depending on how far your phone is from your router.
When choosing an Ethernet cable, consider:
-
-
- Length: Select a cable long enough to reach from your phone to your router or switch.
- Quality: Higher-quality cables are more durable and provide better performance.
- CAT rating: CAT5e or higher is recommended for VoIP phones to support gigabit speeds and reduce interference.
- Country of origin: Some Ethernet cables are made in the USA, which may appeal to customers looking for American-made products.
-
The price of Ethernet cables can vary based on the length and quality, so it’s important to choose the right cable length for your setup and budget.
With years of experience in VoIP and networking, Press8 Telecom has published numerous articles covering technology, tutorials, and product reviews to help businesses make informed decisions.
Introduction to VoIP Phones
This guide is for business owners, IT staff, and remote workers looking to set up VoIP phones using Ethernet cables for reliable communication. VoIP (Voice over Internet Protocol) phones are modern communication devices that allow you to make and receive calls using your internet connection, rather than relying on a traditional landline phone system. By connecting your VoIP phone to your network with a phone ethernet cable, you gain access to reliable, high-quality voice and video calls that are essential for today’s business communications. A wired Ethernet connection ensures higher call quality and security compared to wireless alternatives, making it a preferred choice for professional environments.
Device Compatibility and Adapter Requirements
When selecting a VoIP phone for your office or remote team, consider the following features:
- Gigabit Ethernet support for faster data transfer
- Multiple Ethernet ports for added flexibility (e.g., connecting a computer through the same Ethernet connection)
- Robust security features to protect your calls and sensitive business data
Setting Up Your VoIP Phone
Setting up a VoIP phone is straightforward: simply connect one end of your ethernet cable to the phone’s ethernet port and the other end to your router or network switch. After connecting, you’ll need to configure your phone’s settings, which may include entering your SIP credentials, adjusting network settings, and ensuring your device is recognized by your internet service provider. This setup ensures your phone is ready to deliver clear, uninterrupted calls.
Choosing the Right Ethernet Cable
The quality of your ethernet cable matters, too. Opt for a high-quality cable—preferably CAT5e or higher—with four pairs of wires to support gigabit speeds and reduce interference. Durable cables help maintain a stable connection, minimizing the risk of dropped calls or poor audio quality, which is especially important for business communications.
For optimal performance, consider putting your device in airplane mode and disabling Wi-Fi and Bluetooth when using a wired ethernet connection. This reduces wireless interference and can further improve call clarity. Whenever possible, use a physical ethernet connector or phone jack instead of relying on Wi-Fi, as wired connections are generally more secure and reliable.
Cost Considerations for VoIP Phones
VoIP phones come in a range of prices:
- Basic models: Starting around $50
- Advanced units: With features like video conferencing, call recording, and AI receptionist support, costing $200 or more
When evaluating options, factor in the total cost of ownership—including the phone, necessary adapters, internet service, and any additional features or services your business may require.
By choosing a compatible VoIP phone, using a high-quality ethernet cable, and configuring your system correctly, your business can enjoy secure, high-quality communications with minimal disruptions. VoIP technology not only helps reduce telecom costs but also provides the flexibility and scalability modern businesses need to stay connected and competitive.
Next, we’ll walk through the step-by-step process of connecting your VoIP phone to your network using an Ethernet cable.
If you want to connect an Ethernet cable to your VoIP phone and your modem or router, here are the steps:
Preparing Your Network Equipment
- Power off the modem and router.
Before installing a VoIP phone, unplug the modem and router and any connected devices.
Connecting the VoIP Phone
-
-
- Connect the VoIP phone handset to the base station.
(Skip if your handset is connected to your phone) If the handset has a cord, connect it to the RJ-9 phone jack on the back of the phone. There may be two jacks, one for a handset and one for a headset. Make sure to connect the phone line to the correct line jack for proper voice transmission. If it is a cordless phone, place the handset in the base station and let it charge. And, if the handset requires batteries, put the batteries in the handset. - Connect an Ethernet cable to the desktop phone.
You should see an Ethernet port on your phone’s base station. Connect the Ethernet cable that came with your phone to the port. This ethernet port is designated with an “internet” or network icon. Most VoIP phones offer an Ethernet pass-through option. This allows you to connect another device, such as a computer, to your phone, so you only need to use one port on your router to connect two devices. If you wish to use this option, connect your computer’s Ethernet cable to the port on the base station that says “PC” or something similar. - Connect the Ethernet cable to the router or modem.
Most home routers and modems have four numbered Ethernet ports on the back. So, plug the Ethernet cable from your phone to any of the ports on the back of the router. Also, if you have a network switch that gives you more Ethernet ports, plug the ethernet cable from the phone into an available port on the ethernet switch. - Power up the modem and router.
If you have a separate modem and router, first plug in the modem. Then wait 30 seconds for it to resync with the network. Then plug in the router and wait 30 seconds. - Connect the AC adapter to the VoIP phone.
The AC adapter is the cord you plug into an electrical outlet or power strip. Look for a port on the back of the phone that matches the size and shape of the AC adapter input connector. If you have a Power over Ethernet feature for your home network, you will not need a power supply, as the network cable is the power source.
- Connect the VoIP phone handset to the base station.
-
-
Examples
Example 1:
- If you want to connect both your VoIP phone and your computer to the same Ethernet line, plug the Ethernet cable from the wall or switch into the phone’s “Internet” port, then use a second Ethernet cable to connect the phone’s “PC” port to your computer. This way, both devices share the same network line efficiently.
Example 2:
- If you want to connect both your VoIP phone and your computer to the same Ethernet line, plug the Ethernet cable from the wall or switch into the phone’s “Internet” port, then use a second Ethernet cable to connect the phone’s “PC” port to your computer. This way, both devices share the same network line efficiently.
Testing the Connection
-
-
- Finally, check an outbound call.
When you see the screen turn to the standard home screen, make a test call.
- Finally, check an outbound call.
-
|
Router |
Modem |
Ethernet Cable |
|---|
Note for customers: Before you purchase any Ethernet adapters or cables, check if the items are in stock to avoid delays. Reading customer reviews can help you choose reliable products and make a confident purchase.
If you need to connect mobile devices or smartphones to Ethernet, read on for specific instructions.
Connecting Mobile Devices to Ethernet
Some devices, like iPhones, iPads, or certain tablets and laptops, may not have a built-in ethernet port. In these cases, an ethernet adapter or adapter cable—such as a USB-C to ethernet adapter—can bridge the gap, ensuring your device can connect directly to your network for stable internet access. Always check that your adapter is compatible with your device and supports the necessary data speeds for smooth call quality.
To connect a phone to the internet using an Ethernet cable, you need an Ethernet-to-USB-C or Ethernet-to-Lightning adapter, depending on your device. RJ45 Ethernet cables are designed for wired networking and provide secure, high-speed connections, while RJ11 cables are used for traditional telephones. Using Ethernet with a smartphone requires a compatible adapter, such as USB-C to Ethernet or Lightning to Ethernet.
Next, let’s clarify the differences between Ethernet cables and traditional phone cables to ensure you select the right cable for your setup.
Ethernet Cables vs. Traditional Phone Cables
-
-
- RJ45 Ethernet cables are designed for wired networking and provide secure connections with high-speed data transmission, making them suitable for home and office internet setups.
- RJ11 cables are used for traditional telephones and are not suitable for networking VoIP phones.
- The RJ45 connector has 8 pins, while the RJ11 connector used for telephones has 6 pins, reflecting their different applications in networking and telephony.
-
Now that you know which cable to use, let’s discuss how to obtain the right Ethernet cable for your VoIP phone.
A Note on Routers
If you haven’t upgraded to a new wireless router in a few years, you might want to seriously consider it. That old router may still be working, but newer ones will give you better Wi-Fi and, therefore, higher-quality VoIP calls. Also, check that the firmware on your router is up to date.
With your router ready, the next step is to ensure you have the correct Ethernet cable for your VoIP phone.
Obtaining Ethernet Cable
RJ45 Ethernet cables are designed for wired networking and provide secure connections with high-speed data transmission, making them suitable for home and office internet setups. The RJ45 connector has 8 pins, while the RJ11 connector used for telephones has 6 pins, reflecting their different applications in networking and telephony.
Press8 Telecom does not sell Ethernet cables, but they are widely available from major online retailers such as Voipsupply, Amazon, or New Egg. The specifications are RJ45 Cat-6 Ethernet Patch Internet Cable, which comes in different lengths depending on how far your phone is from your router.
When choosing an Ethernet cable, consider:
-
-
- Length: Select a cable long enough to reach from your phone to your router or switch.
- Quality: Higher-quality cables are more durable and provide better performance.
- CAT rating: CAT5e or higher is recommended for VoIP phones to support gigabit speeds and reduce interference.
- Country of origin: Some Ethernet cables are made in the USA, which may appeal to customers looking for American-made products.
-
The price of Ethernet cables can vary based on the length and quality, so it’s important to choose the right cable length for your setup and budget.
With years of experience in VoIP and networking, Press8 Telecom has published numerous articles covering technology, tutorials, and product reviews to help businesses make informed decisions.
Tamara graduated from Southern Methodist University with a degree in Computer Science and Old Dominion University with an MBA. She started Apollo Hosting, Inc. in 1999 and sold it to Endurance International 10 years later. She also started and sold two other companies before starting Press8 Telecom in 2006. She lives with her husband and two children in Austin, TX.
