All VoIP Peering Needs is a Good CDR

1
All VoIP Peering Needs is a Good CDR

• New Market Peering
• 30 November 2006
• Jim.Dalton_at_TransNexus.com

2
VoIP Peering Quote of the Year

• If you want VoIP to kill SS7, then VoIP has to
  completely replicate everything SS7 does.
• Tom Kershaw
• Economist

3
The Worlds Largest Voice Peering Fabric

• The US SS7 Network (PSTN)
• Thousands of anonymous peers
• Complete and efficient route discovery
• LERG
• LNP database
• An efficient economic model
• Multi-lateral financial settlement
• Independent clearinghouses

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SS7 Voice Peering Fabric
LERG
LNP
Multi-lateral Clearinghouse
5
VoIP Peering Clearing Settlementis Bilateral
Peer 1
Peer 6
Peering Service Provider
CDRs
CDRs
CDRs
Peer 2
Peer 5
Session Border Controller
CDRs
CDRs
Peer 3
Peer 4
CDRs
CDRs
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ENUM Federation Peering
Peering Service Provider
Peer 1
ENUM Directory
Peer 6
CDRs
CDRs
Peer 5
Peer 2
CDRs
CDRs
Peer 3
Peer 4
CDRs
CDRs
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Multi-lateral Clearing Settlement
Multi-lateral Clearinghouse
Peer 1
Peer 6
CDRs
CDRs
Peer 5
Peer 2
CDRs
CDRs
Peer 3
Peer 4
CDRs
CDRs
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Carrier Access Billing (CABS) CDR

• 2020090708315900035E89E890000000000000000000000000
  00000000000000000000000001200000000000000000000000
  00000000000000000112300000000000000000000000000000
  00000000000000000000000000000000000000000000000000
  0000000000
• 11010107082810706632000000010404872393720469000000
  18201140160008330020003500000100000000300000600001
  000310215E89000000000000000000000000000000000DJ3Z0
  00833000000000000346040496100000000901730000000000
  0000000000
• 11010107082810706632000000010706454515220469000000
  18200945390002011020003500000100000000300000600001
  000310215E89000000000000000000000000000000000DJ3Z0
  00201100000000000346040496100000000901730000000000
  0000000000
• 11010107082910404200999900010404418101020537000000
  10001003310008090020003500003100000000308000600001
  000310221E89040000000000000000000000000000000DJ3Z0
  00809000000000007473040441810000000301730000000000
  0000000000
• 11010107082910404200999900010404418121220537000000
  10001501520008033020003500003100000000308000600001
  000310221E89040000000000000000000000000000000DJ3Z0
  00803300000000007473040441810000000301730000000000
  0000000000
• 11010107082910404200999900010404418121220537000000
  10001636220000566020003500003100000000308000600001
  000310221E89040000000000000000000000000000000DJ3Z0
  00056600000000007473040441810000000301730000000000
  0000000000
• 11010107082910404200999900010404961040520537000000
  10001756430000034020003500003100000000308000600001
  000310221E89040000000000000000000000000000000DJ3Z0
  00003400000000007473040441810000000301730000000000
  0000000000
• 11010107082910404200999900010404961040520537000000
  10002001090001018020003500003100000000308000600001
  000310221E89040000000000000000000000000000000DJ3Z0
  00101800000000007473040441810000000301730000000000
  0000000000

9
ETSI Settlement CDR
ltUsageIndication componentId"47850982870685430174
"gt ltTimestampgt2005-05-12T173333Zlt/Timestampgt ltRo
legtsourcelt/Rolegt ltTransactionIdgtTransaction
IDlt/TransactionIdgt ltCallId encoding"base64"gtCall
IDlt/CallIdgt ltSourceInfo type"e164"gtCalling
Numberlt/SourceInfogt ltDeviceInfo
type"transport"gtSource IP Addresslt/DeviceInfogt
ltSourceAlternate type"transport"gtProxy IP
Addresslt/SourceAlternategt ltDestinationInfo
type"e164"gtCalled Numberlt/DestinationInfogt ltDesti
nationAlternate type"transport"gtDestination IP
addresslt/DestinationAlternategt ltUsageDetailgt
ltAmountgt23lt/Amountgt ltIncrementgt1lt/Incrementgt
ltUnitgtslt/Unitgt ltStartTimegt2005-05-12T1733
10Zlt/StartTimegt ltAlertTimegt2005-05-12T174212
Zlt/EndTimegt ltEndTimegt2005-05-12T174227Zlt/End
Timegt ltConnectTimegt2005-05-12T174217Zlt/Conne
ctTimegt ltReleaseSourcegt0lt/ReleaseSourcegt lt/Usa
geDetailgt
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OSP Clearinghouse Example
OSP Server
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Call Accounting
OSP Server
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Multiple Clearinghouses
OSP Server
OSP Server
Internet
Purple Clearinghouse Network
Yellow Clearinghouse Network
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Call Accounting
OSP Server
OSP Server
Internet
Purple Clearinghouse Network
Yellow Clearinghouse Network
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OSP Details

• OSP is a message set for inter-domain pricing,
  authorzation and accounting
• OSP messages
• XML format
• Transmitted via HTTP
• An OSP server is a web server
• ETSI TS 101 321
• OSP Enabled VoIP devices
• Cisco, Veraz, Stratus, Sansay, Covergence,
  OpenSER, SIP Express Router, Asterisk