Are you tired of experiencing dropped calls, slow data speeds, or complete loss of LTE connectivity when you’re on a phone call? You’re not alone. Many smartphone users face this frustrating issue, and it’s essential to understand the reasons behind it. In this article, we’ll delve into the world of LTE technology, explore the possible causes of this problem, and provide you with practical solutions to ensure uninterrupted connectivity.
Understanding LTE Technology
Before we dive into the reasons why your LTE might not work when you’re on the phone, let’s take a brief look at how LTE technology works.
LTE, or Long-Term Evolution, is a wireless communication standard used for mobile devices. It’s designed to provide high-speed data and voice services, with faster data transfer rates and lower latency compared to its predecessors. LTE networks use a combination of technologies, including OFDMA (Orthogonal Frequency Division Multiple Access) and MIMO (Multiple-Input Multiple-Output), to deliver fast and reliable connectivity.
How LTE Handles Voice and Data Traffic
LTE networks use a technique called Voice over LTE (VoLTE) to handle voice calls. VoLTE allows voice traffic to be transmitted over the LTE network, rather than traditional circuit-switched networks. This enables faster call setup times, better voice quality, and the ability to use data services simultaneously.
However, when you’re on a phone call, your device is using a specific type of LTE connection called a “dedicated bearer.” This dedicated bearer is allocated specifically for voice traffic, and it’s prioritized over other types of data traffic. While this ensures high-quality voice calls, it can sometimes lead to conflicts with other data services, causing your LTE to malfunction.
Possible Causes of LTE Not Working on Phone Calls
Now that we’ve covered the basics of LTE technology, let’s explore the possible reasons why your LTE might not work when you’re on the phone.
Network Congestion
One of the most common causes of LTE issues during phone calls is network congestion. When too many users are connected to the same cell tower, it can lead to a decrease in data speeds and even complete loss of connectivity. This is especially true in areas with high population density or during peak usage hours.
How to Identify Network Congestion
If you suspect that network congestion is the cause of your LTE issues, try the following:
- Check your signal strength: If you have a weak signal, it could be a sign of network congestion.
- Look for nearby cell towers: If there are multiple cell towers in your area, try moving closer to one to see if your signal improves.
- Check your data speeds: Use a speed test app to see if your data speeds are slower than usual.
Device Configuration Issues
Sometimes, device configuration issues can cause LTE problems during phone calls. This can include:
- Incorrect APN settings: Your device’s APN (Access Point Name) settings might be incorrect, preventing your device from connecting to the LTE network.
- Outdated software: If your device’s software is outdated, it might not be compatible with the latest LTE network technologies.
- Conflicting apps: Certain apps might be interfering with your device’s ability to connect to the LTE network.
How to Troubleshoot Device Configuration Issues
If you suspect that device configuration issues are the cause of your LTE problems, try the following:
- Check your APN settings: Ensure that your APN settings are correct and match your carrier’s recommended settings.
- Update your software: Make sure your device’s software is up-to-date, as newer versions often include bug fixes and performance improvements.
- Close conflicting apps: Try closing any apps that might be interfering with your device’s LTE connection.
Physical Obstructions
Physical obstructions can also cause LTE issues during phone calls. This can include:
- Buildings and structures: Tall buildings, hills, and other structures can block or weaken your LTE signal.
- Trees and foliage: Dense trees and foliage can absorb or scatter your LTE signal, causing connectivity issues.
- Weather conditions: Inclement weather, such as heavy rain or fog, can affect your LTE signal.
How to Overcome Physical Obstructions
If you suspect that physical obstructions are the cause of your LTE issues, try the following:
- Move to a different location: Try moving to a different location to see if your signal improves.
- Use a signal booster: Consider using a signal booster to amplify your LTE signal.
- Check your carrier’s coverage: Use your carrier’s coverage map to see if there are any known issues in your area.
Practical Solutions to Ensure Uninterrupted Connectivity
Now that we’ve explored the possible causes of LTE issues during phone calls, let’s look at some practical solutions to ensure uninterrupted connectivity.
Use a Dual-SIM Device
If you’re experiencing frequent LTE issues during phone calls, consider using a dual-SIM device. Dual-SIM devices allow you to use two different SIM cards, which can be useful if you need to switch between different carriers or networks.
Enable Wi-Fi Calling
Wi-Fi calling is a feature that allows you to make voice calls over a Wi-Fi network. This can be useful if you’re experiencing LTE issues during phone calls, as it allows you to bypass the LTE network altogether.
Use a Signal Booster
As mentioned earlier, signal boosters can be used to amplify your LTE signal. This can be especially useful if you’re experiencing physical obstructions or network congestion.
Check Your Carrier’s Coverage
Finally, it’s essential to check your carrier’s coverage in your area. If you’re experiencing frequent LTE issues, it might be worth considering switching to a different carrier with better coverage.
Conclusion
In conclusion, LTE issues during phone calls can be frustrating, but they’re often caused by simple issues that can be easily resolved. By understanding the basics of LTE technology, identifying the possible causes of LTE issues, and using practical solutions, you can ensure uninterrupted connectivity and enjoy seamless voice and data services.
Remember, if you’re experiencing persistent LTE issues, it’s always a good idea to contact your carrier’s customer support for further assistance. They can help you troubleshoot the issue and provide personalized solutions to ensure you stay connected.
Why does my LTE not work when I’m on the phone?
Your LTE may not work when you’re on the phone due to the way your phone handles simultaneous voice and data connections. When you’re on a call, your phone typically uses a technology called Circuit Switched Fallback (CSFB) to connect to the cellular network. This technology allows your phone to switch from a 4G LTE connection to a 3G or 2G connection, which is necessary for making voice calls. However, this switch can sometimes cause your LTE data connection to drop or become unavailable.
Another reason for this issue could be the type of LTE network your carrier uses. Some carriers use a technology called Voice over LTE (VoLTE), which allows for simultaneous voice and data connections over LTE. However, if your carrier doesn’t support VoLTE or if your phone doesn’t support it, you may experience dropped LTE connections when making voice calls.
What is Voice over LTE (VoLTE), and how does it work?
Voice over LTE (VoLTE) is a technology that allows for voice calls to be made over an LTE network. Unlike traditional voice calls, which use a separate network for voice and data, VoLTE uses the same LTE network for both voice and data. This allows for simultaneous voice and data connections, which means you can browse the internet or use data-intensive apps while on a call.
VoLTE works by using a technology called IP Multimedia Subsystem (IMS) to manage voice and data traffic over the LTE network. When you make a voice call, your phone sends a request to the IMS server, which then sets up a voice connection over the LTE network. This allows for high-quality voice calls and simultaneous data connections, making it a more efficient and convenient technology than traditional voice calling methods.
How can I check if my carrier supports VoLTE?
To check if your carrier supports VoLTE, you can visit their website or contact their customer support. Most carriers will have a list of supported devices and features on their website, including VoLTE. You can also check your phone’s settings to see if VoLTE is enabled. On most Android devices, you can go to Settings > Wireless & networks > Mobile networks > VoLTE, while on iOS devices, you can go to Settings > Cellular/Mobile Data > Enable LTE.
Another way to check if your carrier supports VoLTE is to look for the “HD Voice” or “VoLTE” logo on your phone’s screen when making a call. This logo indicates that the call is being made over an LTE network using VoLTE technology. If you don’t see this logo, it’s likely that your carrier doesn’t support VoLTE or that your phone doesn’t support it.
Why does my phone switch to 3G or 2G when I’m on a call?
Your phone may switch to 3G or 2G when you’re on a call because of the way your carrier’s network is configured. In some cases, carriers may not support VoLTE, or they may not have a strong enough LTE signal in your area. When this happens, your phone will switch to a 3G or 2G network, which can support voice calls but may not support simultaneous data connections.
Another reason for this switch could be the type of phone you’re using. Some older phones may not support VoLTE or may not be able to handle simultaneous voice and data connections over LTE. In these cases, the phone will switch to a 3G or 2G network to make the voice call, which can cause your LTE data connection to drop.
Can I use data while on a call if I don’t have VoLTE?
If you don’t have VoLTE, you may not be able to use data while on a call. However, some carriers offer a feature called “CSFB” (Circuit Switched Fallback), which allows you to use data while on a call by switching to a 3G or 2G network. This can cause your LTE data connection to drop, but you may still be able to use data over the 3G or 2G network.
Another option is to use Wi-Fi calling, which allows you to make voice calls over a Wi-Fi network. This can be a good option if you’re in an area with a strong Wi-Fi signal and don’t have access to an LTE network. However, Wi-Fi calling may not be supported by all carriers or phones, so you’ll need to check with your carrier to see if it’s available.
How can I troubleshoot LTE connectivity issues when on a call?
To troubleshoot LTE connectivity issues when on a call, you can try restarting your phone or checking your carrier’s network status. You can also try disabling and re-enabling your LTE connection or switching to a different network mode (e.g., from LTE to 3G). If none of these steps work, you may want to contact your carrier’s customer support for further assistance.
Another step you can take is to check your phone’s settings to ensure that VoLTE is enabled. You can also try updating your phone’s software or firmware to the latest version, as this may resolve any connectivity issues. If you’re still experiencing issues, you may want to consider visiting a carrier store or authorized service center for further assistance.
Will 5G networks solve the issue of LTE not working when on a call?
Yes, 5G networks are designed to support simultaneous voice and data connections, which means you should be able to use data while on a call without any issues. 5G networks use a technology called “Voice over New Radio” (VoNR), which allows for voice calls to be made over the 5G network. This means you’ll be able to browse the internet or use data-intensive apps while on a call without any dropped connections.
However, it’s worth noting that 5G networks are still in the process of being rolled out, and not all carriers or phones support 5G yet. Additionally, even with 5G, there may still be some cases where your phone switches to a lower network (e.g., 4G or 3G) due to network congestion or other issues. But in general, 5G networks should provide a more seamless and convenient experience for users who want to use data while on a call.