Sailfish OS Version: 5.0.0.29
SIM provider and country: O2 Telefonica, DE
Network provider and country (if roaming): n/a
Number of SIM cards in use and in which slot: 1 / 1 & 2
| Country | Provider | Registered | Voice in | Voice out | SMS in | SMS out | MMS in | MMS out | Compared |
|---|---|---|---|---|---|---|---|---|---|
| DE | O2 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
I am really impressed with how robust the VoLTE service is.
My first surprise was the dial tone on call, which is a great improvement over the implementation on my Sony Xperia 10III. Sending text messages also works flawlessly, which was also not the case with the Xperia 10 III.
Sending and recieving MMS from Xperia 10 III (on SFOS 4.6.0.15) to the C2 and vice versa was successful.
In addition to the documented test cases, I also successfully held a call and started a new call at the same time. However, it was not possible to start a three-way conference. (The active connection went silent and the inactive connection remained on hold)