Asterisk 为什么星号回答“为什么？”；“坏事件”；发布事件：功能更改？

我正在尝试将Asterisk 11和GoIP 32 Easy Phone与sip trunk绑定

XXX.XXX.XXX.XXX  Asterisk
YYY.YYY.YYY.YYY GoIP


<--- SIP read from UDP:YYY.YYY.YYY.YYY:5106 --->
     PUBLISH sip:goip-1@XXX.XXX.XXX.XXX SIP/2.0
     Via: SIP/2.0/UDP 192.168.2.100:5106;branch=z9hG4bK1758989526
     From: sip:goip-1@XXX.XXX.XXX.XXX;tag=1774677406
     To: sip:goip-1@XXX.XXX.XXX.XXX
     CSeq: 41 PUBLISH
     Event: capability-change


    <--- Transmitting (NAT) to YYY.YYY.YYY.YYY:5106 --->
    SIP/2.0 489 Bad Event
    Via: SIP/2.0/UDP 192.168.2.100:5106;branch=z9hG4bK1758989526;received=185.66.87.244;rport=5106
    From: sip:goip-1@XXX.XXX.XXX.XXX;tag=1774677406
    To: sip:goip-1@8XXX.XXX.XXX.XXX;tag=as147ef74c
    Call-ID: 774522878@192.168.2.100
    CSeq: 41 PUBLISH
    Server: Asterisk PBX 11.25.3
    Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE

XXX.XXX.XXX.XXX星号
YYY.YYY.YYY.YYY GoIP
发布sip:goip-1@XXX.XXX.XXX.XXXSIP/2.0
Via:SIP/2.0/UDP 192.168.2.100:5106；分支=Z9HG4BK17589526
发件人：sip:goip-1@XXX.XXX.XXX.XXX;标签=1774677406
致：sip:goip-1@XXX.XXX.XXX.XXX
CSeq:41发布
事件：能力变化
SIP/2.0 489坏事件
Via:SIP/2.0/UDP 192.168.2.100:5106；分支=Z9HG4BK17589526；已接收=185.66.87.244；rport=5106
发件人：sip:goip-1@XXX.XXX.XXX.XXX;标签=1774677406
致：sip:goip-1@8XXX.XXX.XXX.XXX;标签=as147ef74c
呼叫ID:774522878@192.168.2.100
CSeq:41发布
服务器：星号PBX 11.25.3
允许：邀请、确认、取消、选项、再见、参考、订阅、通知、信息、发布、消息

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为什么星号回答“坏事件”以发布事件：功能更改？

很可能它不支持此事件类型，至少在默认配置中不支持