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HLR. 3G All IP Network. MCA (MM/CCA/PRC). ICG. BTS. BSC/ PCF. SG. PSTN/ PLMN. TG. VFS. BTS. Internet/ Intranet. PDSN. BSC/ PCF. BTS. Logical Peer to Peer Connection - Phase I. Legacy MSC. HLR. MSC. BS/PCF. 3G-legacy network. Aquater. GW. 3G All IP Network. MCA
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HLR 3G All IP Network MCA (MM/CCA/PRC) ICG BTS BSC/ PCF SG PSTN/ PLMN TG VFS BTS Internet/ Intranet PDSN BSC/ PCF BTS Logical Peer to Peer Connection - Phase I Legacy MSC
HLR MSC BS/PCF 3G-legacy network Aquater GW 3G All IP Network MCA (MM/CCA/PRC) HLR ICG BSC/ PCF SG BTS VFS PSTN/PLMN IP network TG BTS Internet/ Intranet PDSN BSC/ PCF BTS Physical Connection - Phase I
AAA/HA End to End VoIP Service over Phase I Network PSTN MCA (MM/CCA/PRC) HLR BSC/ PCF ICG BTS SG VFS Gateway IP network TG BTS End IP Host 2 Internet SIP server H.323 terminal or SIP client BSC/ PCF BTS Gate Keeper PDSN End IP Host 1 Mobile H.323 terminal or SIP client 3G-All IP H.323 terminal or SIP client
HLR 3G All IP Network MCA (MM/CCA/PRC) ICG SG PSTN/ PLMN TG VFS Internet/ Intranet PDSN Logical Peer to Peer Connection - Phase II BTS RRC SDU PCF BTS RRC SDU PCF BTS
HLR MSC BS/PCF 3G-legacy network Aquater GW 3G All IP Network MCA (MM/CCA/PRC) HLR ICG RRC SG BTS VFS PSTN/PLMN IP network TG BTS Internet/ Intranet PDSN SDU PCF BTS Physical Connection - Phase II