�1���� Conference calling
������� 1.1���� Definition
������� 1.2���� Description
������� 1.3���� Operational requirements
������� 1.4���� Coding requirements
������� 1.5���� Signalling requirements
������� 1.6���� Interactions with other supplementary services
������� 1.7���� Interactions with other networks
������� 1.8���� Signalling flows
������� 1.9���� Parameter values
������ 1.10���� Dynamic description (SDLs)
�2����
Three-Party Service
������� 2.1���� Definition
������� 2.2���� Description
� ������2.3���� Operational
requirements
������� 2.4���� Coding requirements
������� 2.5���� Signalling requirements
������� 2.6���� Interactions with other supplementary services
������� 2.7���� Interactions with other networks
������� 2.8���� Signalling flows
������� 2.9���� Parameter values
������ 2.10���� Dynamic description
Appendix� I� (referred to in clause 2)�
�� Diagrammatic description of
coding requirements
������� I.1���� Invoke components
������� I.2���� Return result components
������� I.3���� Return error components
References