Guys, I tried several tests: as starling100 wrote, i tried call to emergency call 112. I got system message "Service not available" and then when the screen switch to home my phone logged on network (log2net.zip)
Than I tried incoming and outgoing call - proximity on my rhod100 is OK, speakerphone OK, MIC not OK. (log_wo_headset.zip)
Than I tried outgoing call and switching the button MUTE - no effect, MIC still not working and switching SPEAKERPHONE button - no effect, MIC still not working. During this call I plugged original HTC headset and ALL is OK (speakerphone OK, MIC on headset OK)(Log_w_headset.zip).
After the reboot phone I'm without signal again and must make call to 112 again.
Using experimental RIL and ro.telephony.default_network=1 in build.prop. Kernel is original came with OMGB_rhodium-1.2.3-12052011