FOSS in the Mobile World
The Siemens BS-11 microBTS


First steps with the Siemens BS-11
Harald bought a BS-11 on e-Bay in 2006
Started to read some specs (08.5x) about A-bis
Started to build cables for E1 and power
Bought HFC-E1 PCI card
Bought Elmi EGM35 Abis analyzer (e-Bay once again)
Contacted with other people who also bought BS-11
Found somebody who could provide Abis traces
Never really had time due to Openmoko and other projects