Dear Farhad,
I am working on a project to implement TETRA Base station and we are looking for someone or group who is wiling to work with us to implement the TETRA L2. If you ware interested, please contact me directly so we can discuss this in details.
Is your L1/L2 implementation going to be Free Software / Open Source?
If yes, I would be happy to discuss how to proceed.
If it is not Free / Open Source Software, please refrain from further posting about it on the Osmocom TETRA mailing list.
Regards, Harald