the unit I bought in the spring right in the Telekom shop, plus an internet pre-paid card (SIM card ... so normal size).
There is no Netlock and not unlocked.
Main purpose: Internet holiday on multiple devices.
I have the T-Mobile Sim card bought for testing and gaming purposes, works fine.
On holiday use: in Sweden I bought in Telia store a prepaid Sim card (approximately SEK 300.00 for 6 months with 5 GB per month high-speed).
The Sim inserted, WIFI or WLAN is set up to the computer, iPad, iPod Touch. On a device in the Internet browser specified call and connect side.
TOP and really fast (in the countryside, not in the metropolitan area).
Now several people can surf at the same time.
Note and Tip: iPad with Cellular (ie so that) to iPad with WIFI has a price difference of 130 euros.
Since then I buy the iPad WIFI and this router.
In Cellular iPad I need an extra little Sim card. I can then only with the iPad Cellular to the Internet (with the router goes router and iPod Touch for example).
In case of unfavorable reception I can rout anywhere near place (terrace and I in the room).