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Spirent Elevate　IMS,VoLTE及RCS測試方案

全球LTE電信網路佈建多年後，近期積極推動VoLTE語音和RCS服務。然而，如何確保VoLTE & RCS 的服務品質，將是對LTE網路的 Quality of Service (QoS) 還有終端的IMS互通性能的嚴峻考驗。Spirent Elevate Test Framework提供全球企業用戶嶄新的驗證體驗，同時測試兩隻手機 (目前是業界唯一)，完整支持 IMS / RCS / VoLTE效能應用IOT測試，搭配ProLab提供市場領先IMS測試方案，可實現end-to-end 測試，如：電池效能 (Quantum)、VoLTE語音 (Nomad)、數據效能 (Datum)及影音 (Chromatic)。

應用及測試目標：
- IMS, VoLTE及RCS功能驗證
- VoLTE及RCS End-to-end IOT測試
- IMS及RCS符合性測試
功能特性：
- Functional & protocol: Evaluation of a single device performance for IMS, VoLTE and RCS feature functionality and protocol messaging and signaling
* Call features such as 3-way and 6-way conference and group chat via simulated media server
* Security & authentication, audio codec, RTCP usage 
* Core network behavior can be customized to emulate adversarial scenarios 
- Device-to-device interoperability: Functional and performance testing of VoLTE and RCS across different device vendors, device versions and carriers
* Device-to-device negotiation to provide the required parameters for VoLTE (e.g., AMR-WB codec)
* VoLTE, IMS and RCS interoperability scenarios between devices connected to WiFi and devices connected to LTE
- User Experience: Quality of Experience (QoE) from the user’s perspective
* VoLTE voice quality as measured by MOS score (avg 4.0+), call connect time, video quality, battery performance, service interaction, jitter buffer management, network impairment 
- Conformance: Minimum performance requirements for IMS and RCS
* Initial registration, mobile originated de-registration (IR.92/3G TS 34.229) 
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