Comet Labs IPTEL-S Bedienungsanleitung PDF herunterladen (Seite 23)

SIP Functionality

8/31/2005 Copyright - Ahlgren 2005 23

AhlTek

User location: Determination of the end system to be used for communication;

Translate user name to their current network address

User

availability:

Determination of the willingness of the called party to engage in

communications; Presence – Your buddy list in IM

User

capabilities:

Determination of the media and media parameters to be used;

negotiation of features to be used between end points.

Session setup: Establishment of session parameters at both called and calling

party; "ringing",

Session

management:

Adding, dropping, transfer and termination of sessions, modifying

session parameters and invoking services.

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Comet Labs IPTEL-S Bedienungsanleitung Seite 23