Fixes:
- Added the PnP provisioning using multi-cast SUBSCRIBE.
Improvements:
- Improved the phenomenon that the terminal sends 488 response to re-INVITE without SDP.
- Improved the phenomenon that the status of BLF becomes different from the actual call status.
It is highly recommended to always use the most recent driver version available.
Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.