T27G no longer option to transfer call during ringing state

[Travis_Yealink]

(04-13-2018 12:50 PM)DmitryTsyganov Wrote:  Hello,

I upgrade T23G to firmware version 83 and run into a problem that transfer option is no longer available during a ringing call. Could you please suggest how i can fix this?

Thanks in advance,
Dmitry

Hi Dmitry,

Do you try to downgrade the firmware back to the previous one and test again? May I know what's the previous firmware version?

Please provide the trace files for further analysis:
a. Level 6 syslog
b. PCAP trace
c. Config.bin
You can get the guide from this link to see how to export the issue data(trace files):
http://support.yealink.com/faq/faqInfo?id=707

By the way, for the issue report, it's suggested to use our Ticket system, more information, please refer: http://support.yealink.com/faq/faqInfo?id=703

Any question, freely to let me know.

Regards,
Yealink_Travis