In general, Android support is dependant on OEM and isn't consistent. The OEM has to implement carrier support in the OS. So in order for Samsung to support WiFi calling, it would have to implement US Cellular's version.
US Cellular might allow only certain devices they carry to have WiFi Calling, and/or the OEMs haven't chosen to implement support USCC's IMS carrier profile. IMS is also used for VoLTE (Enhanced Calling in US Cellular terms), and OEMs are still slow to support that on US Cellular.
iPhone is unique in that iOS firmware can carry multiple carrier profiles at once and can update carrier profiles easily OTA (they can do so even with a major OS update). That is why WiFi Calling tends to be universally supported.
Also, you might have to confirm your account has the required features provisioned. Other carriers (Verizon and AT&T for example) tend to require certain features enabled, such as HD Voice or Advanced/Enhanced Calling.
Prepaid is going to be more restricted than Postpaid in enabled features like these.
Sent from my HD1905 using Tapatalk
My common forum nick: GenesisDH.
R.I.P. Circuit City
We are the Bor... the new AT&T: Your World, Assimilated.
1000th post: Sept. 29th, 2008, 17:42 CDT
Bookmarks