Call waiting if on internal call

[Yealink_Peter]

(03-11-2015 04:07 AM)CarpeDiemTim Wrote:  3CX Support advised that since the 'I want to be able to accept more than 1 call at the same time - uses Phone Status' option is checked on the (3CX) PBX admin console, that the issue is related to the phone's configuration.

Any thoughts on what I should be looking at next?

Hi Tim,

Do you receive/place the outside and internal calls on the same extension?
Is there any other phone connected with the 3CX has the same problem?
Could you please provide PCAP traces each for "call waiting works" situation and "call waiting can't work" situation, syslog at level 6, and config.bin file to us? so we can know the detailed information.
[FAQ] How to Get the Correct Syslog, Config.bin and Trace

Thanks.
Regards,
Peter