Why do call drops happen and how to resolve them?

Call drops, a familiar frustration for most phone users, occur abruptly during conversations. They typically occur in areas with poor connectivity but can also disrupt calls at home or in the office. Several factors contribute to call drops, including weak or fluctuating network signals, which are prevalent in remote or crowded areas. Additionally, software glitches, often triggered by updates, can disrupt network stability.Network congestion, caused by high volumes of users accessing the same tower simultaneously, further exacerbates the issue. To mitigate call drops, consider switching to a stronger network, updating your device software, or restarting your phone to refresh network connections.

A frequent cause of call drops is the presence of weak or unstable signals. While you can quickly check the strength of your network by the number of bars displayed on your phone's status bar, there is no industry standard tying cell signal strength to the number of bars. This means one bar for Airtel may be the same as three bars for Jio.
Occasionally, software updates can impact network connectivity. For instance, users of Google's Pixel series phones have reported issues where their phones were unable to connect to the network after certain software updates.
In densely populated areas, high network traffic might also lead to call drops. This usually occurs when many users in a specific area are connected to the same tower and try to access the network simultaneously.

Although there is no guaranteed way to completely eliminate call drops, the following tips and tricks can help reduce the problem.
If you are experiencing poor signal at home or in the office, switching to a different network provider might help. Before making the switch, ensure you check all available plans and ask others about the telecom operator's network quality in your area. Certain telecom providers, such as Airtel, provide maps that allow you to check network coverage in specific areas.
Updating your phone to the latest software version can help fix network issues. If you frequently experience call drops, verify that your phone is updated to the latest software version.
While it may not sound intuitive, sometimes all you need is a simple restart to fix your network problems. Although Android and iOS devices are designed to connect to the best available network, restarting your phone can often resolve connectivity issues.
In areas with low to no network connectivity, your smartphone might switch to calling over Wi-Fi. While this feature is useful, it can sometimes cause call drops. Wi-Fi calling is enabled by default on most Android phones but can be disabled in the SIM settings under the 'Settings' app. On iPhones, this option can be found under the 'Phone' section in the 'Settings' app.
As a last resort, you can try resetting your network settings to fix frequent call issues. Depending on your smartphone model, this option might be located under different sections, but it can be quickly found by searching for 'reset' in the settings app. Keep in mind that this option might also erase your saved Bluetooth and Wi-Fi settings.