BLF Call Transfer T46G

[Karl_Yealink]

Please tell me the firmware version of the phones?

The scenario:
A call to B, B attended transfer to C, B complete the transfer, A and C make a call.
1. When B using BLF key to make a attended transfer, the C always show B even B complete the transfer?
2. When B attended transfer manual, the C will show B during B and C making call. After B complete the transfer.
The C will show A.
Is the scenario?

Can you help us to get the trace files from B and C phones. We can check more from them.
And please capture the trace files two times for each scenario.
The capture method: http://support.yealink.com/faq/faqInfo?id=311