Abstract: The CPH（call party handling）proposed in ITU
T（international telecommunication union telecommunication standardization s
ector） recommendation for IN（intelligent network） capability set 2 enables IN
to influence twoparty or multiparty calls,The method and model defined in C
S2（capability set 2） are analyzed in detail,some issues about CPH applicatio
ns in the current network are discussed. A solution to CPH is proposed. And a m
ultiparty call sample is carried out in this way. The result shows that this s
olution can save system resource and improve agility of service,and it is a user
ful method in practice.

Key words: call party handling, connection view state, service s witch function, service control function