Hi. I have some traces about how the NG handles the precense information between the presence server. There is some intresting issues how the presence is updated especially during the boot strap when NG publish it's presence information.. the precense is published a several times with a different presence information, that should be done only once with the 'Online' status.
in the other hand..Ng is trying to establish a several presence dialogs.. and that's not good.. too much sip traffic. The problem with it is that it does not follow the RFCs for presence. It does not use SIP-ETag and SIP-If-Match headers to detect that it is an update of the previous PUBLISH, so it is interpreted by the server as a new PUBLISH. For your information.. See trace log in the attachment. -Tomi
Draft programme for the first European conference .pdf
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