I have unresolved problem: how to raise concurrent calls to 28? I use bladerf x40 w/ USB3. FPGA 0.1.2, FW 1.8.0. I set:
Radio.ARFCNs=4
Channels.NumC1s=28
Channels.NumC7s=3
Radio.RSSITarget=-35
Some phone models can connect up to 28 concurrently, some models can connect not more than 10, sometimes 2-3. Just don't place a call, or lost network, etc. What could it be? Moreover, when many phones, YateBTS lost connection with bladeRF and starts freezing, on both versions, 5.x and 6.x.
There are so many parameters in [gsm_advanced] section, should I alter something else to make it work stable?