Webrtc ConfbridgeWelcome

Hello,
I am experimenting with webrtc and Asterisk 17.6.0. I have followed the instructions in https://wiki.asterisk.org/wiki/display/AST/Conference+Bridge+Messaging
and it all works except that I never get the ConfbridgeWelcome event. I get the following conference bridge events in the manager:

Event: ConfbridgeStart
Privilege: call,all
Conference: alligator
BridgeUniqueid: 7a7b936c-47a4-4ae8-b86a-91cc55abbf98
BridgeType: base
BridgeTechnology: softmix
BridgeCreator: ConfBridge
BridgeName: alligator
BridgeNumChannels: 1
BridgeVideoSourceMode: sfu

Event: ConfbridgeJoin
Privilege: call,all
Conference: alligator
BridgeUniqueid: 7a7b936c-47a4-4ae8-b86a-91cc55abbf98
BridgeType: base
BridgeTechnology: softmix
BridgeCreator: ConfBridge
BridgeName: alligator
BridgeNumChannels: 2
BridgeVideoSourceMode: sfu
Channel: PJSIP/webrtc_client-00000004
ChannelState: 6
ChannelStateDesc: Up
CallerIDNum: webrtc_client
CallerIDName: Bert
ConnectedLineNum: <unknown>
ConnectedLineName: <unknown>
Language: en
AccountCode:
Context: video-conf
Exten: s
Priority: 7
Uniqueid: 1598470488.12
Linkedid: 1598470488.12
Admin: No
Muted: No

Event: ConfbridgeJoin
Privilege: call,all
Conference: alligator
BridgeUniqueid: 7a7b936c-47a4-4ae8-b86a-91cc55abbf98
BridgeType: base
BridgeTechnology: softmix
BridgeCreator: ConfBridge
BridgeName: alligator
BridgeNumChannels: 3
BridgeVideoSourceMode: sfu
Channel: PJSIP/webrtc_client-00000005
ChannelState: 6
ChannelStateDesc: Up
CallerIDNum: webrtc_client
CallerIDName: Dumbledore
ConnectedLineNum: <unknown>
ConnectedLineName: <unknown>
Language: en
AccountCode:
Context: video-conf
Exten: s
Priority: 7
Uniqueid: 1598470512.15
Linkedid: 1598470512.15
Admin: No
Muted: No

Event: ConfbridgeLeave
Privilege: call,all
Conference: alligator
BridgeUniqueid: 7a7b936c-47a4-4ae8-b86a-91cc55abbf98
BridgeType: base
BridgeTechnology: softmix
BridgeCreator: ConfBridge
BridgeName: alligator
BridgeNumChannels: 3
BridgeVideoSourceMode: sfu
Channel: PJSIP/webrtc_client-00000004
ChannelState: 6
ChannelStateDesc: Up
CallerIDNum: webrtc_client
CallerIDName: Bert
ConnectedLineNum: <unknown>
ConnectedLineName: <unknown>
Language: en
AccountCode:
Context: video-conf
Exten: s
Priority: 7
Uniqueid: 1598470488.12
Linkedid: 1598470488.12
Admin: No

Event: ConfbridgeLeave
Privilege: call,all
Conference: alligator
BridgeUniqueid: 7a7b936c-47a4-4ae8-b86a-91cc55abbf98
BridgeType: base
BridgeTechnology: softmix
BridgeCreator: ConfBridge
BridgeName: alligator
BridgeNumChannels: 2
BridgeVideoSourceMode: sfu
Channel: PJSIP/webrtc_client-00000005
ChannelState: 6
ChannelStateDesc: Up
CallerIDNum: webrtc_client
CallerIDName: Dumbledore
ConnectedLineNum: <unknown>
ConnectedLineName: <unknown>
Language: en
AccountCode:
Context: video-conf
Exten: s
Priority: 7
Uniqueid: 1598470512.15
Linkedid: 1598470512.15
Admin: No

Event: ConfbridgeEnd
Privilege: call,all
Conference: alligator
BridgeUniqueid: 7a7b936c-47a4-4ae8-b86a-91cc55abbf98
BridgeType: base
BridgeTechnology: softmix
BridgeCreator: ConfBridge
BridgeName: alligator
BridgeNumChannels: 1
BridgeVideoSourceMode: sfu

Is there something I have to do to activate it?
Regards,
Ian

I’ve got it working. It seems that you have to turn on events in the default user and bridge sections to get the enhanced events.

{
  "type": "ConfbridgeWelcome",
  "timestamp": "2020-08-27T11:53:28.101-0400",
  "bridge": {
    "id": "701e3869-d688-423d-8565-4e5c9cfd67ca",
    "name": "alligator",
    "creationtime": "2020-08-27T11:53:08.817-0400",
    "video_mode": "sfu"
  },
  "channels": [
    {
      "id": "1598543575.8",
      "name": "PJSIP/webrtc_client-00000003",
      "state": "Up",
      "caller": {
        "name": "Hermione",
        "number": "webrtc_client"
      },
      "creationtime": "2020-08-27T11:52:55.754-0400",
      "language": "en",
      "admin": false,
      "muted": false
    },
    {
      "id": "1598543588.9",
      "name": "PJSIP/webrtc_client-00000004",
      "state": "Up",
      "caller": {
        "name": "Phineas",
        "number": "webrtc_client"
      },
      "creationtime": "2020-08-27T11:53:08.214-0400",
      "language": "en",
      "admin": false,
      "muted": false
    }
  ]
}