The default hybrid modem/router supplied by Magenta (T-Mobile) in Austria is a Huawei HA35-22.
On the back it has 2 external antenna connectors (SMA female) under a plastic cover.
These connectors are neither shown nor mentioned in its user manual.
Which signal would these antennas amplify: WIFI or LTE?
[ANSWER]
The only information I could find was the option to choose "internal/external/auto" mode in the mobile-internet settings.
Therefore I assume it's for LTE and not for WiFi
