Key Takeaway: Jio WiFi Calling (VoWiFi) on Samsung A50 lets you make calls over WiFi when the cellular signal is weak. Setting it up requires enabling the feature on both your Jio account and specific Samsung dialer settings. This guide covers the complete setup process with troubleshooting for common activation issues.
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What is Jio WiFi Calling?
Jio WiFi Calling, also known as VoWiFi (Voice over WiFi), allows you to make and receive calls using a WiFi connection instead of the cellular network. This is particularly useful in areas with poor Jio 4G signal strength — inside concrete buildings, basements, or remote locations where WiFi is available but cellular coverage is weak. Calls made over WiFi are billed at standard rates and do not consume your data plan.
Prerequisites
- Samsung Galaxy A50 (model SM-A505F or SM-A505G)
- Active Jio SIM with 4G voice support
- WiFi connection (broadband or hotspot)
- Latest software update installed (One UI 2.x or later)
- Jio VoWiFi enabled on your account (usually automatic)
Step-by-Step Setup
Step 1: Check Software Version
Go to Settings > About Phone > Software Information and verify your phone is running the latest firmware. Jio WiFi Calling was added to the A50 via software updates — if you are on an older build, the option may be missing. Update via Settings > Software Update > Download and Install.
Step 2: Enable WiFi Calling in Settings
Navigate to Settings > Connections > WiFi Calling. Toggle the switch ON. If you do not see this option, your carrier firmware may not support it — proceed to the dialer code method below.
Step 3: Alternative Method (Dialer Code)
Open the Phone dialer app and dial: *#*#8696#*#*
This opens the VoWiFi provisioning menu. Tap “WiFi Calling” and select “ON.” If the menu shows “OFF” or “NOT PROVISIONED,” Jio has not enabled VoWiFi on your line — call Jio customer care at 1991 and ask them to enable WiFi Calling on your number.
Step 4: Verify Activation
Once enabled, look at the status bar. You should see a “Jio WiFi” or “Jio Wi-Fi Call” icon next to the signal bars. Make a test call — the dialer should show “Jio WiFi Call” or “Jio VoWiFi” during the call instead of just “Jio 4G.”
Troubleshooting Common Issues
WiFi Calling option missing entirely
This usually means your A50 is running a non-Jio firmware (many Samsung phones sold as “unlocked” have generic firmware that does not include carrier-specific features). Solution: Flash the official Jio India firmware using Odin (available on SamMobile or similar sites).
“WiFi Calling” greyed out
Your WiFi network may be blocking the IMS (IP Multimedia Subsystem) ports required for VoWiFi. Try switching to a different WiFi network — if it works on another network, your router settings need adjustment. Ensure SIP ALG is disabled in your router’s firewall settings.
WiFi Calling turns off automatically
This can happen if WiFi power saving mode is enabled. Go to Settings > Connections > WiFi > Advanced and disable “Switch to mobile data” — this prevents the phone from dropping WiFi Calling when the WiFi signal weakens.
Frequently Asked Questions
Does Jio WiFi Calling work internationally?
Yes. Jio WiFi Calling works on any WiFi network worldwide. Calls to Indian numbers are billed at standard domestic rates regardless of where you are physically located.
Will WiFi Calling drain my battery faster?
WiFi Calling uses slightly more battery than idle standby because the phone maintains both the WiFi connection and the IMS registration. The difference is typically 5-10% additional battery drain per day.
Can I use Jio WiFi Calling without a Jio 4G signal?
Yes — that is the entire purpose. As long as you have a working WiFi connection, calls will route over WiFi even if the cellular network is completely unavailable. However, you need at least one bar of 4G signal for initial IMS registration on some phone models.
Related Reading
External Resources
Sources: Jio Official Support, Samsung Support, Community Testing
