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Simplified Call Flow Signaling: 2G/3G Voice Call

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Simplified Call Flow Signaling:
2G/3G Voice Call
@3g4gUK
2G/3G/4G Network Architecture
©3G4G
BSC
BTS
MSC
Voice (PSTN)
Network
SGSN
Data (IP)
Network
RNC
Node BeNodeB
MME
GGSN
Acce...
©3G4G
Mobile Network Operator 1
(MNO 1)
Public Switched Telephone Network
(PSTN)
Exchange
Exchange
Internet
Landline phone...

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Simplified Call Flow Signaling: 2G/3G Voice Call

  1. 1. Simplified Call Flow Signaling: 2G/3G Voice Call @3g4gUK
  2. 2. 2G/3G/4G Network Architecture ©3G4G BSC BTS MSC Voice (PSTN) Network SGSN Data (IP) Network RNC Node BeNodeB MME GGSN Access Network Core Network Air Interface MSUEUE BSSRNS S-GW P-GW 2G 2.5G 3G 4G EPC
  3. 3. ©3G4G Mobile Network Operator 1 (MNO 1) Public Switched Telephone Network (PSTN) Exchange Exchange Internet Landline phone Wi-Fi router MNO 2 Core Network Base Station Base Station Access NetworkBackhaul Air Interface
  4. 4. 2G/3G Voice Call Signalling ©3G4G UE1 AN CS CN PS CN Establish connection procedures Paging UE2. Please respond UE2 I want to Setup connection with UE 2 Ok. Call Proceeding Call for UE2 Establish connection procedures UE1 wants to establish connection with you Ok, establishing connection Connected Connected
  5. 5. Thank You To learn more, visit: 3G4G Website – http://www.3g4g.co.uk/ 3G4G Blog – http://blog.3g4g.co.uk/ 3G4G Small Cells Blog – http://smallcells.3g4g.co.uk/ Follow us on Twitter: https://twitter.com/3g4gUK Follow us on Linkedin: https://www.linkedin.com/company/3g4g ©3G4G

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