BLF does not work after changing provider

[Yealink_Michael]

hi

thanks for your information

for this issue, please make sure that BLF configuration is correct first,

then upgrade T27 to the last firmware we release and reset to factory and test again , firmware download link :

http://support.yealink.com/attachmentDow...0.0.70.zip

if the issue still exist, then please provide us the trace file for future analysis ,trace file including pcap file, config bin and syslog file , and we need three of them provide at one time.

for how to get them , please refer to the FAQ below:
http://forum.yealink.com/forum/showthread.php?tid=1319

after you collect all of them , please send them and the detail description of the issue to support@yealink.com this email is 24 hours work , then we will follow up quickly .

let me know if any question

TKS & BR

Michae