Summary: Windows Live/MSN Messenger defines both Minimum and Maximum values for Presence subscriptions. If the SUBSCRIBE method uses a value out of this range, it may result in a SIP failure. The minimum value is 3600 seconds and the MAX value is...

Update: As of June 25, 2009, the KB article 897567 has been updated, and now is accurate. Summary: As of June 13, 2009, the content of the KB article 897567 contains an inaccuracy. The last octet for the second MSN IP address was improperly transposed...