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LBS 於 IMS 中示意 專案說明 : 本產品使用ISC Interface(SIP)與S-CSCF介接 產品說明 : 客製化LBS , UE dial 短碼定位轉碼到當地服務平台 LBS - Location Based Function CSCF - Call Session Control Function A SIP proxy device found within the 3GPP IMS which can undertake a variety of different roles, such as Proxy CSCF, Interrogating CSCF, Serving CSCF and Emergency CSCF. Ref:  http://www.3gpp.org/ https://www.ietf.org/rfc/rfc3261.txt SIP系列讲座-VoLTE和IMS网络讨论 https://cellidfinder.com *Note: 由於牽涉到較多商業技術 , 不便寫太多 , 有興趣歡迎留言給我 or Email (You know who am I ?)