I've noticed that when my application receives an EstablishedEvent for a new outgoing call it's followed by a ConferencedEvent:
<?xml version="1.0" encoding="UTF-8"?>
<ConferencedEvent xmlns="http://www.ecma-international.org/standards/ecma-323/csta/ed3">
<monitorCrossRefID>39823</monitorCrossRefID>
<primaryOldCall>
<callID>0</callID>
<deviceID typeOfNumber="dynamic" mediaClass="notKnown" bitRate="constant">0:S8300ADAC::0</deviceID>
</primaryOldCall>
<secondaryOldCall>
<callID>369</callID>
<deviceID typeOfNumber="other" mediaClass="notKnown" bitRate="constant">01026:S8300ADAC::0</deviceID>
</secondaryOldCall>
<conferencingDevice>
<deviceIdentifier typeOfNumber="explicitPrivate:localNumber" mediaClass="notKnown" bitRate="constant">01026:S8300ADAC::0</deviceIdentifier>
</conferencingDevice>
<addedParty>
<deviceIdentifier typeOfNumber="explicitPrivate:localNumber" mediaClass="notKnown" bitRate="constant">01026:S8300ADAC::0</deviceIdentifier>
</addedParty>
<conferenceConnections>
<connectionListItem>
<newConnection>
<callID>369</callID>
<deviceID typeOfNumber="other" mediaClass="notKnown" bitRate="constant">120:S8300ADAC::0</deviceID>
</newConnection>
<endpoint>
<deviceID typeOfNumber="explicitPrivate:localNumber" mediaClass="notKnown" bitRate="constant">120:S8300ADAC::0</deviceID>
</endpoint>
</connectionListItem>
<connectionListItem>
<newConnection>
<callID>369</callID>
<deviceID typeOfNumber="dynamic" mediaClass="notKnown" bitRate="constant">T369#2:S8300ADAC::0</deviceID>
</newConnection>
<endpoint>
<deviceID typeOfNumber="explicitPublic:unknown" mediaClass="notKnown" bitRate="constant">T369#2:S8300ADAC::0</deviceID>
</endpoint>
</connectionListItem>
<connectionListItem>
<newConnection>
<callID>369</callID>
<deviceID typeOfNumber="other" mediaClass="notKnown" bitRate="constant">01026:S8300ADAC::0</deviceID>
</newConnection>
<endpoint>
<deviceID typeOfNumber="explicitPrivate:localNumber" mediaClass="notKnown" bitRate="constant">01026:S8300ADAC::0</deviceID>
</endpoint>
</connectionListItem>
</conferenceConnections>
<localConnectionInfo>connected</localConnectionInfo>
<cause>silentParticipation</cause>
</ConferencedEvent>
DeviceID's in primary and secondary calls do not match the number being called. What does this event mean?