If your ASUS ROG Phone 9 is dropping calls mid-conversation, it's incredibly disruptive, especially when you're coordinating a game session or on an important call. This usually comes down to a spotty cellular connection, a software hiccup, or a setting that needs adjusting on your gaming phone.
Let's run through the most effective fixes, starting with the quick ones you can do in under a minute.
Toggle Airplane Mode On and Off
This is the fastest way to refresh your phone's connection to the cellular network. Swipe down from the top of your screen to open the Quick Settings panel. Tap the Airplane Mode icon to turn it on, wait about 15 seconds, then tap it again to turn it off.
Your phone will reconnect to the network, which often clears up temporary glitches causing the drops.
Check Your Signal Strength
Weak signal is the number one culprit for dropped calls. Look at the signal bars in the top-right corner of your ROG Phone 9's screen. If you're down to one or two bars, try moving to a different location.
Being near a window or stepping outside can make a big difference. The phone's large, metal-heavy design can sometimes interfere with signal reception compared to lighter phones, so positioning matters.
Perform a Force Restart
A simple reboot can clear out software gremlins. For the ASUS ROG Phone 9, press and hold the Power button for at least 15 seconds. Keep holding it until you see the ROG logo appear, indicating the phone is restarting.
This is a clean restart that doesn't delete any of your data or settings.
Review Your Focus and Do Not Disturb Settings
Check if a Focus mode or Do Not Disturb is accidentally blocking calls. Swipe down twice from the top to see your full Quick Settings tiles. Look for icons like a crescent moon or a specific Focus mode that's active.
If you see one, tap it to turn it off. You can also go into Settings > Sound & vibration > Do Not Disturb to check the schedule and rules.
Update Your Date and Time Settings
Incorrect time settings can sometimes mess with network authentication. Make sure your phone is set to update automatically. Open Settings > System > Date & time.
Ensure the "Use network-provided time" and "Use network-provided time zone" options are toggled on. This small sync can resolve unexpected connection issues.
Check for Blocked Numbers
It's worth a quick look to make sure you haven't accidentally blocked the number you're trying to call, or that a spam filter isn't too aggressive. Head to your Phone app and tap the three-dot menu in the top-right corner.
Go to Settings > Blocked numbers. Review the list and unblock any numbers that shouldn't be there by tapping the 'X' next to them.
Verify Cellular Data and Network Mode
First, ensure your mobile data is turned on. Go to Settings > Network & internet > Mobile network and make sure "Mobile data" is enabled.
You can also try switching your preferred network type. In the same menu, tap Preferred network type. If you're on "5G", try switching to "4G/3G/2G (auto)" for a bit. Sometimes a weaker 5G signal can cause more instability than a solid 4G connection, especially indoors.
Update Your Carrier Settings and System Software
Carrier updates are pushed by your service provider to improve network performance. These often install automatically, but it's good to check. Connect to Wi-Fi, then go to Settings > System > System update.
Tap "Check for update" to see if any carrier or system updates are available. Installing the latest Android 15 update for the ROG Phone 9 is crucial, as it includes stability patches that can fix calling bugs.
Inspect and Reseat Your SIM Card
A loose or dirty SIM card can cause intermittent connection loss. Use the SIM eject tool that came with your phone (or a small paperclip) to pop out the SIM tray on the side of the phone.
Carefully remove the SIM card, give the gold contacts a gentle wipe with a soft, dry cloth, and reinsert it. Make sure it's seated firmly in the tray before sliding it back into the phone.
Reset Your Network Settings
If calls are still dropping, resetting network settings can be a powerful fix. This will erase all saved Wi-Fi networks, Bluetooth pairings, and cellular network preferences, but it won't touch your personal files.
Go to Settings > System > Reset options. Tap Reset Wi-Fi, mobile & Bluetooth and confirm. After the phone reboots, you'll need to reconnect to Wi-Fi and re-pair Bluetooth devices, but it often resolves persistent network issues.
If you've been gaming heavily before the call drops, the Snapdragon 8 Elite chip can get quite hot. I'd recommend letting the phone cool down for a few minutes, as extreme heat can sometimes affect radio performance. Using the X Sense game mode's cooling settings or enabling bypass charging during long sessions can help manage this.
Finally, if none of these steps work, the issue might be with your carrier's service in your area. Give them a call to check for any known network outages or issues with your account. They can also run diagnostics and, if needed, provide a replacement SIM card.