SIP:SessionInitiationProtocol

TherearemanyapplicationsoftheInternetthatrequirethecreationandmanagementofasession,whereasessionisconsideredanexchangeofdatabetweenanassociationofparticipants.Theimplementationoftheseservicesiscomplicatedbythepracticesofparticipants;usersmaymovebetweenendpoints,theymaybeaddressableb