您的电话会在您接听电话后立即结束来电吗？或者在电话交谈中的随机时刻？问题可能是蜂窝网络接收不良、操作系统过时或您的SIM卡有问题。
本教程重点介绍了 12 种可能永久解决掉线问题的方法。我们涵盖了适用于Android(Android)和 iOS 设备的故障排除修复程序。
1. 提升蜂窝网络接收
蜂窝信号强度差(Poor)是手机掉线的重要原因之一。检查手机的状态栏，确保至少有两个信号栏。如果您的手机信号条少于两个，那么您可能离最近的手机信号塔很远。
您离手机信号塔越远，手机上的蜂窝网络接收信号就越弱。临时(Temporary)网络拥塞和极端天气（雷暴、大雨、大风）是影响网络质量的其他因素。尝试在您所在的位置移动以获得更好的蜂窝接收。在高层或多层建筑的较高楼层，您可能会获得更好的蜂窝接收。
物理障碍物（高层建筑、山丘和树木）也可以阻挡网络信号并形成死区——没有蜂窝信号的区域。如果您的家或办公室处于蜂窝死区，信号增强器可能是一项不错的投资。手机(Cell)信号增强器（也称为“蜂窝中继器”）操纵物理障碍物并放大不良信号。
请注意，细胞助推器只会增强微弱的信号。如果您的运营商在您所在的地区没有手机服务(carrier doesn’t have cell service)，那么使用助推器不会有任何区别。
2.尝试飞行模式技巧
将手机放入和退出飞行模式(airplane mode)可能会停止掉线问题。
在 iOS 设备上，打开设置(Settings)应用程序，打开飞行模式(Airplane Mode)，等待 30 秒，然后将其关闭。
在 Android 中，进入设置(Settings)>网络和 Internet(Network & Internet) >高级(Advanced)，打开飞行模式(Airplane mode)，30 秒后将其关闭。
3. 使您的来电显示可见(Caller ID Visible)（在 iPhone 上）
根据您的运营商，隐藏您的来电显示可能会干扰您的设备接听来电的能力。如果您最终接到来电，您的手机可能会将其挂断。检查您手机的设置并确保您的来电显示可见。
在 iPhone 上，前往Settings > Phone > Show My Caller ID并打开Show My Caller ID。
4. 检查您的互联网连接
(Voice-over-the-internet)如果您的蜂窝网络或 Wi-Fi 连接速度较慢或无法访问 Internet，则网络语音呼叫可能会不断中断。测试您的连接并确保您的互联网正常工作。打开您的网络浏览器，访问任何网站，并监控页面加载速度。
如果您的蜂窝连接速度很慢，请参阅我们关于提高移动数据速度以修复您的互联网的教程。(tutorial on improving mobile data speed)如果应用程序在 Wi-Fi 连接上掉线，请重新启动路由器并将手机重新连接到网络。您还应该查看其他增强 Wi-Fi 信号以获得更快互联网速度的(boost Wi-Fi signal for faster internet)方法。如果您的连接仍然缓慢或无法正常工作，请联系您的服务提供商。
5. 更新日期和时间设置
不正确的时间和日期设置可能会破坏手机上蜂窝服务的性能。检查您的移动设备的设置并确保它使用网络提供的日期和时间。
在 Android 上，转到Settings > System > Date & time并同时打开Use network-provided time和Use network-provided time zone。
对于 iOS 设备，请前往“设置”(Settings) > “通用(General)” > “日期和时间”(Date & Time)，然后打开“自动设置(Set Automatically)” 。
6. 检查运营商设置更新(Carrier Settings Update)
蜂窝网络提供商通常会推出运营商设置更新，以解决影响电话和蜂窝服务的问题。尽管大多数智能手机会自动安装这些更新，但您可能必须手动启动安装。
如果您拥有Android设备，请转到“设置”(Settings) > “关于手机(About phone)”并等待运营商设置更新弹出窗口。某些Android设备可以选择在设置(Settings)>蜂窝网络(Cellular network)>运营商设置中更新运营商设置(Carrier settings)。有关安装运营商设置更新的详细步骤，请联系您的智能手机制造商或网络提供商。
在 iPhone 上，前往“设置”(Settings) > “通用(General)” > “关于(About)本机”并等待至少 30 秒。
如果您没有收到安装新运营商设置更新的提示，则您的手机具有最新的运营商设置。
7. 重新打开或更新应用程序
如果移动应用程序过时或漏洞百出，它们有时会出现故障。如果您的互联网工作正常，但呼叫应用程序(calling application)不断掉线，请关闭并重新打开应用程序。
如果问题仍然存在，请将应用程序更新到设备应用商店中的最新版本。这应该可以解决问题，尤其是在应用程序已过时或存在错误的情况下。否则(Otherwise)，如果语音或视频通话应用程序在您的手机上不断掉线，请联系应用程序开发人员。
8. 取出并重新插入 SIM 卡
如果您的SIM卡插入不正确，您的手机可能会遇到发送或接收短信(problems sending or receiving text messages)和蜂窝电话的问题。脏污或损坏的SIM卡也会中断手机上的手机信号。
弹出您的SIM卡，然后用柔软、干燥、不起毛的布轻轻擦拭金属触点。此外，向SIM(SIM)卡端口喷几股压缩空气以去除灰尘和污垢。如果您发现SIM卡有任何物理损坏或严重划痕，请联系您的运营商网络进行更换。
将SIM 卡(SIM card)重新插入端口并检查是否可以稳定设备上的蜂窝电话。对于双SIM 卡(SIM)设备，请尝试将SIM卡插入不同的端口并检查是否可以提高通话质量。
SIM卡有使用寿命。旧SIM(SIM)卡上的蜂窝信号强度和接收可能会下降，尤其是在它们不再接收运营商设置更新的情况下。如果您的SIM卡使用了大约 5-10 年，您可能应该换一张新的。否则，您可能会遇到移动数据速度缓慢(slow mobile data speed)和通话问题。
如果您不确定您所在地区的SIM卡的使用寿命或手机接收情况，请联系您的运营商网络。同样(Likewise)，检查SIM 卡不工作时的其他修复(fixes for when your SIM card isn’t working)。
9.重启你的手机
系统重启可以解决iOS(call failures on iOS)和Android设备上的SIM 卡问题(SIM card issues)和通话失败问题。如果取出并重新插入SIM卡后问题仍然存在，请关闭手机并重新打开。
10.更新你的手机
掉话问题在多种型号的Android和 iOS 设备中普遍存在。然而，有趣的是，苹果(Apple)和谷歌(Google)经常发布软件更新来修复影响蜂窝电话和其他问题的故障。例如，Apple明确发布了iOS 15.1.1 ，以“提高 iPhone 12 和 iPhone 13 型号的通话掉线性能”。
如果上述建议均不能解决问题，请更新手机的操作。
前往“设置”(Settings) > “通用(General)” > “软件更新”(Software Update)，然后轻点“下载并安装(Download and Install)”以将 iPhone 更新到最新的 iOS 版本。
要安装Android更新，请转到设置(Settings)>系统(System)>高级(Advanced)>系统更新(System update)，然后点击检查更新(Check for updates)。
安装Android更新的步骤可能会因您的Android智能手机型号而异。有关安装Android更新的详细说明，请联系您的手机制造商。
11.重置网络设置
运营商或网络设置冲突可能会影响智能手机的通话性能。将设备的网络设置重置为出厂默认设置可能会解决掉线问题。
重置 iPhone 网络设置
要在运行 iOS 15 或更高版本的 iPhone 上重置网络设置，请前往“设置”(Settings) > “通用(General)” > “传输或重置 iPhone(Transfer or Reset iPhone) ” > “重置(Reset)” 。选择重置网络设置(Reset Network Settings)，输入您的 iPhone 密码，然后在确认信息中点击重置网络设置(Reset Network Settings)。
如果您的 iPhone 运行 iOS 14 或更低版本，请前往“设置”(Settings) > “通用(General)” > “重置(Reset)” > “重置网络设置”(Reset Network Settings)并输入您的密码。
重置安卓网络设置
打开 Android设置(Settings)，进入高级(Advanced)>重置选项(Reset options)>重置 Wi-Fi、移动和蓝牙(Reset Wi-Fi, mobile & Bluetooth)，然后点击重置设置(Reset Settings)。
12. 使用 Wi-Fi 通话
如果您的手机由于信号问题不断掉线，请尝试改用 Wi-Fi 通话。这是一项功能，可让您在没有蜂窝连接的情况下拨打电话。启用后，Wi-Fi呼叫(Calling)通过互联网路由电话呼叫。
您不需要第三方应用程序即可使用Wi-Fi通话。将手机连接到Wi-Fi网络，一切顺利。如果您的运营商网络支持Wi-Fi通话，请参阅我们的使用 Wi-Fi 拨打电话的教程(tutorial on using Wi-Fi to make calls)。这篇文章重点介绍了有关在Android(Android)和 iOS 设备上启用和使用Wi-Fi通话所需了解的所有信息。
Why Your Phone Drops Calls and How to Fix
Does your phone end incoming cаllѕ as soon as you answer them? Or at random moments during a phone cоnversation? The problem could be poor cellular nеtwork reception, аn outdated operating systеm, or isѕues with your SIM card.
This tutorial highlights 12 possible ways to end call drop issues for good. We cover troubleshooting fixes for Android and iOS devices.
1. Boost Cellular Network Reception
Poor cellular signal strength is one of the significant reasons why phones drop cellular calls. Check your phone’s status bar and make sure there are at least two signal bars. If your phone has less than two signal bars, you’re probably far away from the nearest cell tower.
The farther you are from a cell phone tower, the weaker the cellular network reception on your phone. Temporary network congestion and extreme weather (thunderstorms, heavy rain, wind) are other factors that affect network quality. Try moving around your location to get better cellular reception. You may get better cellular reception on higher floors in a high-rise or multi-story building.
Physical obstructions (high-rise buildings, hills, and trees) can also block network signals and create dead zones—areas without cellular signals. If your home or office is in a cellular dead zone, a signal booster might be a good investment. Cell phone signal boosters (also called “cellular repeaters”) maneuver physical obstructions and amplify poor signals.
Note that cellular boosters only enhance weak signals. If your carrier doesn’t have cell service in your area, using a booster will make no difference.
2. Try the Airplane Mode Trick
Putting your phone in and out of airplane mode may stop the call drop issue.
On iOS devices, open the Settings app, toggle on Airplane Mode, wait for 30 seconds, and toggle it back off.
In Android, go to Settings > Network & Internet > Advanced, turn on Airplane mode, and turn it off after 30 seconds.
3. Make Your Caller ID Visible (on iPhone)
Depending on your carrier, hiding your caller ID may interfere with your device’s ability to receive incoming calls. If you eventually receive incoming calls, your phone may drop them off. Check your phone’s settings and ensure your caller ID is visible.
On iPhone, go to Settings > Phone > Show My Caller ID and toggle on Show My Caller ID.
4. Check Your Internet Connection
Voice-over-the-internet calls may keep dropping if your cellular or Wi-Fi connection is slow or doesn’t have internet access. Test your connection and make sure your internet is working. Open your web browser, visit any website, and monitor how fast the page loads.
If your cellular connection is slow, refer to our tutorial on improving mobile data speed to fix your internet. If apps are dropping calls on a Wi-Fi connection, reboot the router and reconnect your phone to the network. You should also check out other ways to boost Wi-Fi signal for faster internet. Contact your service provider if your connection remains slow or nonfunctional.
5. Update Date and Time Settings
Incorrect time and date settings can ruin the performance of cellular services on your phone. Check your mobile device’s settings and ensure it uses the network-provided date and time.
On Android, go to Settings > System > Date & time and turn on both Use network-provided time and Use network-provided time zone.
For iOS devices, go to Settings > General > Date & Time and turn on Set Automatically.
6. Check for Carrier Settings Update
Cellular network providers often roll out carrier settings updates that fix issues affecting phone calls and cellular services. Although most smartphones automatically install these updates, you may have to initiate the installation manually.
If you own an Android device, go to Settings > About phone and wait for a carrier settings update pop-up. Some Android devices have the option to update carrier settings in Settings > Cellular network > Carrier settings. Contact your smartphone manufacturer or network provider for detailed steps on installing carrier settings updates.
On an iPhone, go to Settings > General > About and wait for at least 30 seconds.
Your phone has the latest carrier settings if you don’t get a prompt to install a new carrier settings update.
7. Reopen or Update the App(s)
Mobile applications sometimes malfunction if they’re outdated or bug-ridden. If your internet is working correctly, but the calling application keeps dropping calls, close and reopen the app.
If the problem persists, update the app to the latest version in your device’s app store. That should fix the problem, especially if the app is outdated or has a bug. Otherwise, contact the app developer if the voice or video calling app keeps dropping calls on your phone.
8. Remove and Reinsert SIM Card
If your SIM card is inserted incorrectly, your phone may encounter problems sending or receiving text messages and cellular calls. A dirty or damaged SIM card can also interrupt cell phone signals on your phone.
Eject your SIM card and gently wipe the metal contact with a soft, dry, lint-free cloth. Additionally, spray a few blasts of compressed air in the SIM card port to dislodge dust and dirt. If you notice any physical damage or heavy scratches on your SIM card, contact your carrier network for a replacement.
Reinsert the SIM card in the port and check if that stabilizes cellular calls on your device. For dual SIM devices, try inserting the SIM card into a different port and check if that improves the call quality.
SIM cards have lifespans. Cellular signal strength and reception may drop on older SIM cards, especially if they no longer receive carrier settings updates. If your SIM card is about 5-10 years old, you should probably get a new one. Otherwise, you may experience slow mobile data speed and call issues.
Contact your carrier network if you’re unsure about your SIM card’s lifespan or cell phone reception in your region. Likewise, check out other fixes for when your SIM card isn’t working.
9. Restart Your Phone
A system reboot can fix SIM card issues and call failures on iOS and Android devices. If the problem persists after removing and reinserting your SIM card, shut down your phone and turn it back on.
10. Update Your Phone
Call drop issue is prevalent across several models of Android and iOS devices. Interestingly, however, Apple and Google often release software updates that fix glitches affecting cellular calls and other issues. For instance, iOS 15.1.1 was released explicitly by Apple to “improve call drop performance on iPhone 12 and iPhone 13 models.”
Update your phone’s operating if none of the recommendations above resolves the problem.
Go to Settings > General > Software Update and tap Download and Install to update your iPhone to the latest iOS version.
To install an Android update, go to Settings > System > Advanced > System update and tap Check for updates.
The steps to install Android updates may vary depending on the model of your Android smartphone. Contact your phone’s manufacturer for detailed instructions on installing Android updates.
11. Reset Network Settings
Conflicting carrier or network settings can mess up phone call performance on your smartphone. Resetting your device’s network settings to factory default may resolve the call drop issue.
Reset iPhone Network Settings
To reset network settings on iPhones running iOS 15 or later, go to Settings > General > Transfer or Reset iPhone > Reset. Select Reset Network Settings, enter your iPhone’s passcode, and tap Reset Network Settings on the confirmation.
If your iPhone runs iOS 14 or older, go to Settings > General > Reset > Reset Network Settings and enter your passcode.
Reset Android Network Settings
Open the Android Settings, go to Advanced > Reset options > Reset Wi-Fi, mobile & Bluetooth, and tap Reset Settings.
12. Use Wi-Fi Calling
If your phone keeps dropping calls due to signal issues, try using Wi-Fi calling instead. It’s a feature that allows you to make phone calls without a cellular connection. When enabled, Wi-Fi Calling routes phone calls through the internet.
You don’t need third-party apps to use Wi-Fi calling. Connect your phone to a Wi-Fi network, and you’re good to go. If your carrier network supports Wi-Fi calling, refer to our tutorial on using Wi-Fi to make calls. The post highlights everything you need to know about enabling and using Wi-Fi calling on Android and iOS devices.
