Why Does It Say Server Unreachable When I Call Someone?

A"server unreachable " means your device cannot connect to the carrier network. It represents a breakdown between your mobile device and the network server, which prevents the call initiation and causes the call drops.

Both cellular networks and VoIP (Voice Over Internet Protocol) services like Zoom, Skype, and WhatsApp can experience this problem, but identifying the root cause makes it easier to resolve.

Server unreachable issues commonly occur due to network issues, server downtime, incorrect settings, firewall restrictions, carrier routing problems, or software glitches. However, sometimes misconfigured VoIP credentials or blocked ports can also be the causes.

A weak internet connection or unstable mobile signal can prevent your device from reaching the server, especially when using VoIP services. If the person you are calling is on an unreachable network or experiencing technical issues, the call may fail from their end as well.

The server may be down due to maintenance, overload, or unexpected outages. Especially during peak hours, you might experience temporary server unavailability because of technical difficulties on the provider's side.

Incorrect settings on your device or VoIP program may prevent your network from accessing the server. Misconfigured network settings, such as wrong IP addresses or enabled DNS settings, can block your device from reaching the call server.

Likewise, while making VoIP calls, the server may not respond if your SIP credentials (login details for VoIP services) are incorrect.

Incorrect firewall settings on your device can block incoming traffic from reaching the server, resulting in an unreachable server error. Also, public or business Wi-Fi using security policies often block certain ports or protocols necessary for VoIP traffic, like SIP or RTP (Real-Time Protocol), causing call failures.

For instance, VoIP calls commonly use SIP (Session Initiation Protocol) on port 5060, but some networks restrict it.

If the person you’re calling transfers the number to a different carrier using the number porting service, the call might fail due to temporary routing delays during the porting process. As it can take some time for networks to update and properly route calls to the new carrier, this may result in a server being unreachable.

Sometimes, the server-unavailable problem is caused by a bug or glitch in the operating system or a calling application on your phone. Additionally, outdated apps can cause server incompatibilities and fail call attempts.

To fix the "server unreachable" issue, check your network connection, restart your device, verify your service provider’s status, and ensure your call settings are correct. If the problem continues, test with another device and contact customer support for further assistance.

Verify your signal strength or switch to a different network with high bandwidth to prevent the unreachable server by ensuring a stable connection. Furthermore, ensure to turn off your device’s Airplane Mode, as it disables all network connections.

You can fix small issues that affect server connectivity by restarting your phone. To do this, just switch off your device, wait for a short time, and then turn it back on. Restart acts as a quick reboot, which fixes minor and temporary server issues.

Regularly checking your service provider status allows you to identify potential server issues from the provider's side. If you’re facing a persistent problem, visit your provider's website, their social media support, or contact customer service for assistance.

Make sure you are logged in and that your app settings are set up correctly if you are using a VoIP phone system. For traditional phone networks, verify that your carrier settings are up to date by visiting your phone's settings or contacting your service provider.

Updating VoIP or calling apps you are using resolves the compatibility issues resulting from outdated programs or operating systems. So, regularly look for software updates in your device's settings and keep everything up-to-date.

If you are having trouble reaching the specific phone number, ensure that you have not accidentally blocked that number. Check the call blocking list in your call settings to eliminate any unintended restrictions.

A loose or improperly inserted SIM card may cause network connectivity issues. Remove your SIM card, clean it if it's dusty, and check for any damage. If it's broken, replace it with a new one. Then, reinsert it properly and restart your phone to ensure smooth internet and data connectivity.

If network-related issues persist, resetting your network settings can help. It minimizes server connectivity glitches like IP duplication and restores the device network to a clean state.

Follow the steps below to reset your phone's network settings.

• On iOS: Go to Settings > General > Reset > Reset Network Settings.
• On Android: Go to Settings > System > Reset options > Reset Wi-Fi, mobile & Bluetooth.

To determine whether the issue is with the network or your device, try calling from a different phone on the same network. If the other device can make calls without any issues, your phone's hardware, software, or settings may be the problem.

If none of the above solutions resolves the issue, contact the service provider for help. They can look for network issues and assist you with other troubleshooting methods.

• Regularly update your device’s software and apps to avoid compatibility issues.
• Verify your IP settings and credentials to ensure proper configuration.
• Avoid using public or restricted Wi-Fi networks for VoIP calls.
• Keep your device free of unnecessary background applications that may interfere with network performance.
• Ensure a stable and strong cell network or internet connection (for VoIP calls).

Server unreachable warning results from incorrect settings, server outages, or network issues. Simple troubleshooting steps like rebooting your phone, verifying your internet connection, or changing your settings can resolve the issue. However, for more complex issues, it's best to consult your service provider.
 

Your phone is saying the server is unreachable because it cannot connect with your carrier. Poor internet access, server outages, incorrect call settings, or issues with VoIP configuration usually cause it.

To fix a server problem, check your internet connection, ensure your carrier or VoIP settings are correctly configured, reset your network settings, and update your software.

No, server unreachable typically indicates a problem with the network or connection. If you are blocked, your call may ring once, go directly to voicemail, or you’ll hear the tone indicating that the number is unavailable.