newfeatures:

corrections:
1) Inability to discover WiFi network is fixed.
2) Wrong filename generating in hub while saving data from client is fixed.
3) Hanging WiFi module is fixed.
4) Call hangup with PTT is fixed.
5) Connecting to servers except hub service is prohibited while device is connected to hub.
6) Automatic switching to GPRS in the absence of Internet access via WiFi is fixed.

annotations:
ATTENTION:
Upgrading to this firmware is available from firmware 33.0 or greater.
This firmware requires bootloader 2.0 or greater.
Revision 4
Commit SHA hash cdb95c60 
