- ultra viewer is used to replace team viewer.
- refer url for provision parameters
- the firmware must upgrade to spa50x-30x-7-5-2b.bin first, then it can further upgrade to higher version
- blf is a bit weird <Dictionary_Server_Script ua=”na”>serv=http://$url/;d0=English-US;x0=spa50x_30x_en_v756.xml;
- for download provision file, may need power cycle manually the phone
- the pbx software: http://www.mirtapbx.com/ (Italy)