Com Samsung Android App Telephonyui
Coordinates primary preferences for Multi-SIM Galaxy smartphones, determining which SIM card processes outgoing calls, SMS messages, and active mobile data connections.
Absolutely not.
If you're experiencing issues with the Telephony UI app, try: com samsung android app telephonyui
If you look at your mobile data usage breakdown, you might see this package using a tiny amount of data (usually for Wi-Fi calling or RCS/call log sync). This is normal. com samsung android app telephonyui