Unified communications service is an integrated service, providing voice, video, data and information services. A portal system offers management of this service to enterprise managers and ordinary employees. The portal system is built up via SSH(Spring, Struts, Hibernate) framework. An extension of service logic layer of this system is suggested since the traditional SSH solution can not fulfil certain requirements. This paper firstly introduces the network infrastructure of UC service, analyzing the particular requirements that differ from regular systems. Afterwards, this paper proposes a scheme of extension, then the means to implement it. This service logic layer is capable to communicate with a variety of servers in a complex network, making full utilization of SSH framework.