Update 9/13/2014: The Huawei Hotline responds very confusing to the state, which are only 72 Mbit with the installed WLAN 5GHZ possible and as the 150 Mbit LTE may be not at all passed to the terminal.
Posted 10.09.2014 Huawei: If no antenna connected, a maximum speed of 72 Mbit / s can be achieved, regardless of whether or 2.4GHz was set 5GHz.
Note from me: The antenna connections are only for LTE, but not for WiFi !!
Posted 04.08.2014 Huawei: Unfortunately we can make device from other manufacturers no statement, which is why these differ to our devices
Posted 07.08.2014 Huawei: In order for a connection speed of up to 150 Mbit / s is possible to connect to the 5 GHz wireless network must be made.
Note from me: An excellent answer, but the built-in WLAN module in the modem can only 72 Mbit at 5 GHz !!!!
Show more telephone calls, this is the technology Hotline totally overwhelmed with the question of the WLAN and not looking for which the antenna connections, then, are thought.
I'll stay further off, so that the iPhone 5, grade 3, grade get 10.1 (2014) full WLAN speed with the modem.
Update 20/09/2014: In a comment of "ex" is described to change the bandwidth in the modem from 20 to 40 MHz and already
comes a Connect 150 Mbit. For laptops, there should be even 300 Mbit because there 2 antennas are installed. From Huawei
is still nothing to hear for 1 week, for example. so a tip !!