本論文發表一種新穎的整合架構，整合了有線與無線通訊系統，在無線通訊系統中，結合了行動電話與無線電話，即整合架構整合了桌上話機、行動電話、DECT與PHS，達到分機互撥功能，將分機行動化，使工作上具有機動性與彈性，並提高工作效率，在潔淨室內使用低功率行動電話，改善多重路徑效應，在外並兼具漫遊功能的需求。
DECT與PHS在潔淨室建造好初期無法正常使用，在空曠的潔淨室裡，其鋼樑結構與金屬材料隔間，加重了多重路徑效應干擾，導致內部無線電波的全反射，造成無線通訊不良，通話斷續，影響工作上的行動性、便利性與靈活性，降低工作效率，若無基地台服務，在外亦無法使用，並不具漫遊功能；而行動電話在潔淨室裡收不到訊號，且發射功率比DECT或PHS來得高，禁止攜帶至潔淨室內，以減少對生產機台設備、製程與產品的干擾與影響。
試驗驗證GSM在潔淨室之多重路徑效應干擾的程度並不像DECT或PHS一樣嚴重，即GSM與DECT依同樣的規格在潔淨室內通訊，GSM並不像DECT或PHS會通訊不良、通話斷續的現象，並依系統規格特性來探討與說明，以理論來解釋試驗結果。
以1座室內GSM基地台、2條E1數據專線、95支低功率天線涵蓋室內，經由網路設定與軟體規畫通話路由，搭配既有的有線與無線交換機，250門低功率行動電話以分機號碼與桌上話機、DECT、PHS溝通，實現了改善潔淨室多重路徑效應並具備漫遊功能。

This thesis presents a novel architecture, which is integrated with wire/wireless communication system. This wireless communication system combines cellular mobile phone with cordless phone. This integrated architecture integrates desk phone, cellular mobile phone, and DECT/PHS for attaining extension function by mutual dialing. The active extension is mobile and flexible for work, the heightens work efficiency, and uses low-power GSM system that not only improves multi-path effect in clean room, but also meets the demands of roaming function outside.
DECT/PHS cannot perform well in recently constructed clean room, in a spacious clean room, because its steel structure and metallic partitions increase multi-path effect, which results in total reflection of the internal radio waves, and causes failed wireless communication and intermittent connection, which influences mobility, convenience, flexibility for work, and reduces work efficiency. DECT/PHS cannot be used outdoors since it lacks base station service and the roaming function. However, cellular mobile phones do not receive signals in clean room, and its transmitted power is higher than DECT/PHS. Carrying is prohibited in clean room in order to reduce the interference impact on equipments, processes and products.
This experiment verifies that the interference level of multi-path effect of GSM system in clean room is less acute than DECT/PHS’s, i.e. GSM system and DECT are based on the same specifications for communicating in clean room, GSM system lacks DECT/PHS’s characteristics of failed communication and intermittent connection. This paper discusses and illustrates the specifications and features of wireless communication system, and shows that the experimental results fit the theories.
One set of indoor GSM base station is installed, two sets of E1 dedicated lines are applied, and 95 sets of low-power antennas for indoor coverage are set up. Using collocated existing wire/wireless PBX through networks setting and software scheme for call routing, 250 users of low-power cellular mobile phones have successfully communicated with desk phones and DECT/PHS by using extension numbers. The proposed architecture for improving multi-path effect in clean room and having roaming function is implemented.

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