I have an Standard Edition Deployment, with both Office Communicator 2007 and Mobile Communicator 2007. I have noticed a delay in the change of presence information status of the contact when he has suddenly lost network connection. While the presence status should change as soon as possible to Not Available, instead it keeps the last known presence status of the user. Just after a long long time in some cases it refreshes the info.
Is there a timer that i skipped to set? Any ideas?