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IMS4

ims-volte-sip 출처 http://www.slideshare.net/kirank29/ims-volte-sip SIP Call Flow (Eg)SIP Message (Eg) INVITE Logs  Registration:- D/RILJ ( 986): [0139]> RIL_REQUEST_IMS_REGISTRATION_STATE D/RILC ( 262): RIL onRequestComplete: Command channel closed D/RILJ ( 986): [0139]< RIL_REQUEST_IMS_REGISTRATION_STATE {1, 2} D/RIL_ImsSms( 986): IMS is registered! MO SMS D/RIL_ImsSms( 986): sendText D/CDMA ( 986): sendSms.. 2016. 3. 19.
VoLTE용어정리 VoLTE를 이해해가 위한 용어정리IMS: IP Multimedia SubsystemSIP: Session Initiation ProtocolSDP: Session Description ProtocolCSCF: Call Session Control FunctionHSS: Home Subscriber ServerAS: Application ServerVoLTE: Voice Over LTEP-CSCF: Proxy CSCFI-CSCF: Interrogationg CSCFS-CSCF: Serving CSCFAKA: Authetication and Key AgreementAM: Acknowledged ModeTM: Transparent ModeEMM: EPS Mobility ManagementESM: EPS Se.. 2016. 3. 9.
SRVCC의 종류 SRVCC의 종류 aSRVCC: Packet switched to Circuit Switched call transfer during Alerting PhasebSRVCC: SRVCC before ringingvSRVCC: SRVCC for video callrSRVCC:r everse SRVCC HO from CS call to PS IMSeSRVCC: enhanced SRVCC Support of mid-call feature during SRVCC handover (eSRVCC) Support of SRVCC PS-CS transfer of a call in alerting phase (aSRVCC) SRVCC VS eSRVCC 참조 http://www.sharetechnote.com/html/Ha.. 2016. 3. 9.
SRVCC SRVCC(Single Radio Voice Call Continuity), 즉 단일무선음성통화연속 기술은,LTE의 패킷 스위치 도메인(PS)에서 2G와 3G에서 운영되는 회로 스위치 방식(CS) 음성 네트워크로 이동하는 경우,통화 세션을 유지시켜 주는 기술이다. 상세 내용은 하기 참조! SRVCC - Single Radio Voice call Continuity is a level of functionality that is required within VoLTE systems to enable the packet domain calls on LTE to be handed over to legacy circuit switched voice systems like GSM, UMTS and CDMA 1x .. 2016. 3. 9.
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