Abstract: A computer readable media, a method, and a system registering a third party application providing an available communication system between a local user and a remote user identity, storing information related to the available communication system in a first database, obtaining contact information for the remote user identity from the third party application, determining a communication type for the third party application, pairing the remote user identity with a contact, and updating a graphical representation of contact information.

Abstract: A process is provided for the crystallization of bis-(4-chlorophenyl) sulphone from a reaction mixture in which it is formed by reacting chlorobenzene sulphonic acid and chlorobenzene which comprises (i) forming a crystallization liquor from the reaction mixture by adjusting the weight ratio of chlorobenzene to chlorobenzene sulphonic acid of the reaction mixture so as to maximize the quantity of bis-(4-chlorophenyl) sulphone which can crystallize from the liquor at a desired crystallization temperature, and (ii) allowing the bis-(4-chlorophenyl) sulphone to crystallize from the crystallization liquor at the temperature.