EHS36 & Jabra GN9330e cause full echo for other party

[Coco_Yealink]

Hello,

Thank you for your information . And "EGS" is my error writing.
So, let me make a summary, the issue in your side is happen on PRE-AUGUST-2009 HEADSETS & BASES , and the headset cannot answer the call.
So,could you please tell me will the phone change from idle to dial mode after you press the answer key when there is no coming call?
And will the headset base ring the bell when there is a call.
Could you please answer me above quesions and then get the syslog(level 6) and pcap to me when the issue happen.
syslog/trace
The first information : When you use the POST-AUGUST-2009 HEADSETS & BASES , you can answer the call via headset.
The second informatioin :When you use the PRE-AUGUST-2009 HEADSETS & BASES , you cannot answer the call via headset.
Please get above two information separately , it will helpful for us to compare. After that , please send them to my email: coco@yealink.com