If your Android phone will not place an outgoing call, first identify the failure pattern: do all numbers fail or just one? Does the screen say No service, SOS only, or SIM not detected? If you use two lines, which SIM/eSIM is selected for calls? These answers separate a number-specific issue from coverage, line activation, and device problems. Android menus differ by brand and carrier, so no single “Call Settings” path fits every phone.
If you need urgent help and this phone cannot call, use another working phone or another available way to contact local emergency services. Do not spend an emergency troubleshooting settings, and do not assume an emergency call will complete without a usable network.
Quick checks before changing settings
- Open the Phone app and dial two ordinary, known-working numbers. Note whether both fail and copy any error message or carrier recording.
- Swipe down to open Quick Settings and turn off Airplane mode if it is on. Wait for service to return before trying again.
- If you have two lines, check the line selected for calls using the Pixel or Galaxy instructions below. A working data connection on one line does not confirm that the other line can call.
- Try again in a place where this carrier normally has coverage. If calls work there, investigate coverage or supported Wi-Fi calling at the original location.
- Power the phone off and back on, then repeat the same ordinary call. If it still fails, use the matching symptom below to decide what to check next.
Change one thing at a time and repeat the same call after each check. That makes a successful result useful: you know which change helped, rather than having several unrelated settings to undo.
Start with the symptom
| What happens | Check first |
|---|---|
| All numbers fail; No service, SIM error, or SOS only | Airplane mode, coverage, active SIM/eSIM, carrier outage, and line activation. |
| One of two lines can call, the other cannot | The selected calls/primary SIM and voice activation of the failing line. |
| Only one number fails | Re-enter that number with its area/country code and test another contact. Avoid resetting the phone. |
| Call connects but audio fails | Bluetooth, microphone, and speaker—not outgoing-call connection. |
| Outgoing calls work but incoming calls do not ring | Do Not Disturb, blocked numbers, ring settings, and carrier call forwarding. This is a different problem. |
Record the exact error and whether calls, texts, and mobile data each work. Give that pattern to your carrier if you need help.
1. Check coverage and airplane mode
Open Quick Settings and make sure Airplane mode is off. If it already is, turn it on and off once, wait for service to return, and try an ordinary number. Move to known coverage if signal is missing or weak. Check the carrier’s outage information if other people on the same network also have trouble. Google Pixel and Samsung Galaxy both begin with connection and service checks.
Do not treat the Mobile data switch as a universal voice-call switch or change APN/network-operator settings from a generic tutorial. Your carrier and phone must have a working calling service.
2. Confirm the intended voice line and SIM/eSIM
If you recently changed carriers, phones, SIMs, or eSIMs, ask the carrier to confirm the voice line is activated and this model is compatible. A downloaded eSIM is not proof the line was provisioned. Do not delete the eSIM to troubleshoot; recovery may require carrier reactivation.
- Pixel: Open Settings > Network & internet > SIMs. Check the intended carrier, that Use SIM is on, and—for dual SIM—which line is selected for calls. See Google’s connectivity guide and dual-SIM instructions.
- Samsung Galaxy: Open Settings > Connections > SIM manager. Check that the intended physical SIM or eSIM is active and inspect the primary SIM/call preference. See Samsung’s SIM guide. Labels can differ by model, region, carrier, and One UI version.
For an unrecognized physical SIM, power off and follow the phone maker’s instructions for inspecting or reseating it, or have the carrier test it. Never force a SIM tray. An eSIM is not a removable card.
Choose the calling line on a dual-SIM phone
- On a supported Pixel, open Settings > Network & internet > SIMs. Under Your primary SIMs, tap Calls and select the intended line, or Ask every time if you want to choose for each call.
- On a supported Galaxy, open Settings > Connections > SIM manager. Check that the intended line is enabled, then use Primary SIM where available. You can also inspect the SIM option in the Phone dialer before making the call.
- Dial the same number again and confirm which line is being used. If just one line fails, give that line’s carrier the error instead of resetting both lines.
Use the settings your phone actually displays. A separate Calls control, Primary SIM, and a dialer SIM selector are model-dependent choices, rather than three controls that every Android phone must have.
3. Restart, update, and use a supported diagnostic
Restart the phone with its on-screen power menu, then test a known-working number. Check Software update using your model’s Settings app; updating cannot fix a carrier outage or inactive line. On Pixel 11 phones in the US with US subscribers, Google also documents Settings > Device health & support > Call diagnostics. Its call test and report may help narrow the fault. This is not a feature to expect on every Pixel or Android phone. Google’s current diagnostic instructions
4. Escalate according to the failure pattern
- No service or inactive line: Contact the carrier from another phone or Wi-Fi connection. Ask about account status, outage, activation, registration, and voice compatibility for your exact model.
- Texts/data work but cellular voice fails: Tell the carrier exactly that. Ask it to verify voice provisioning and supported calling technology. Do not guess at VoLTE or APN settings.
- Calling fails only at home: If your carrier and device support Wi-Fi calling, ask the carrier how to enable it for that line. It does not activate an unprovisioned line. Google notes carrier dependence.
- The Phone app freezes before dialing: Update the Phone app, restart, and test. Follow model-specific guidance before clearing its cache; clearing storage/data is different and can remove information.
- A recent calling, security, or management app preceded the problem: Ask the device maker about its safe-mode diagnostic. On a work-managed phone, ask the administrator rather than bypassing a policy.
Check Wi-Fi calling separately
Wi-Fi calling is a carrier feature that can help in a place with weak cellular coverage. Confirm support and any charges with your carrier first. Google documents Settings > Network & internet > SIMs > your carrier SIM > Wi-Fi calling on supported phones; turn it on, then try the same number while connected to a working Wi-Fi network. Follow your carrier’s setup prompts and look for its Wi-Fi calling indication. See Google’s Wi-Fi calling instructions.
If that option is missing, check the instructions for your exact phone and carrier. If Wi-Fi calling has been disabled after repeated problems, a restart or carrier help may be necessary. Do not assume ordinary internet access means carrier Wi-Fi calling is ready.
For the older Samsung Galaxy On5 running Android Marshmallow, our Wi-Fi calling preference guide covers its Never use Cellular Network setting. That is a legacy, device-specific option; its Phone > More menu is not a current universal Android path.
What to have ready when you contact your carrier
Give support a short fault report instead of asking for a generic reset: your phone model, the affected carrier and line, when the problem began, the exact on-screen error, whether every number fails, whether incoming calls, texts, and mobile data work, and whether the problem follows you to another location. Mention a recent SIM/eSIM transfer or account change. Ask the carrier to confirm outage status, voice activation/provisioning, any outgoing-call restriction, and compatibility of that line with the phone. Share account identifiers only through the carrier’s authenticated support channel.
Network reset is a later, device-specific step
If the carrier confirms service and no outage, ask which mobile-network reset applies to your exact phone. Google distinguishes mobile-network reset from Wi-Fi/Bluetooth resets on Pixel; other models may combine them. Read the confirmation screen for what will be removed, and know how to restore your SIM/eSIM and custom settings. A factory reset is not routine troubleshooting: it erases device data and cannot repair a carrier outage or unactivated line.
Common questions
Why can I receive calls but not call out?
Check the SIM selected for outgoing calls and try multiple numbers. Tell the carrier incoming works but outgoing fails, along with any error; it can check outbound restrictions and voice provisioning.
Does Do Not Disturb block outgoing calls?
Ordinary Android Do Not Disturb manages which incoming calls and notifications interrupt you. Check it if the phone does not ring, not as the first fix for an outgoing call that cannot connect. Android Do Not Disturb guidance
Should I factory-reset?
Not before checking coverage, carrier service, SIM/eSIM, selected call line, and device-specific diagnostics. If the carrier or manufacturer eventually recommends erasing, back up first and confirm account and eSIM recovery.
Product guidance checked October 4, 2026. Pixel and Galaxy paths are examples; device, carrier, and software versions can change menus.
Matthew Burleigh has been writing tech tutorials since 2008. His writing has appeared on dozens of different websites and been read hundreds of millions of times.
After receiving his Bachelor’s and Master’s degrees in Computer Science he spent several years working in IT management for small businesses. However, he now works full time writing content online and creating websites.
His main writing topics include iPhones, Microsoft Office, Google Apps, Android, and Photoshop, but he has also written about many other tech topics as well.