Abstract: Architecture for session management enabling the reusing of session attributes of a current session in creating a new session, for adding new participants to a call session. A telephony component manages IP-based call sessions. The telephony component can be an IP telephone or a personal computing device running an IP telephony application, for example. A header component includes attributes of an existing IP call session with multiple parties. The header component can be sent in an INVITE message when establishing the new IP call session, for example. An attribute selection component selects attributes of the existing IP call session to be reused with the new IP call session with the multiple parties and a different party or parties. A session replacement component replaces the existing IP call session with the new IP call session, including the attributes reused from the previous session.

Abstract: Conversations between two parties are seamlessly and transparently escalated into a conversation between multi-parties with minimal user interaction. If the two initial parties are joined to a central focus and a media, a third or more participant is invited to join the conversation. If either of the two initial parties fails to join the focus or media, the original conversation is restored and the attempt to escalate to a conference is abandoned.

Abstract: Conversations between two parties are seamlessly and transparently escalated into a conversation between multi-parties with minimal user interaction. If the two initial parties are joined to a central focus and a media, a third or more participant is invited to join the conversation. If either of the two initial parties fails to join the focus or media, the original conversation is restored and the attempt to escalate to a conference is abandoned.