.net DMCC register SIP phone success, and then can receive Ring / HookSwitch / Lamp Events and Media RTP packet. But when Display update , application can not receive DisplayUpdate Event.

.net DMCC register H.323 phone that can receive media RTP packet ,All events including DisplayUpdate Event.

Have any CM or AES configurations need to modify ?

SIP Phone Type: J100 or J179

AES Version: 7.0.1.0.4.15-0
CM Software Load: R017x.00.0.441.0
.net DMCC Version: 6.3.3

For Avaya SIP phones, you can register a station in Independent mode. It is then possible to get media and Media Start/Stop events. No other first party functions (button pressing, lamp events, display update events etc.) are supported.

Martin

OK, thanks for giving this information.