Transcript Cable Telephony & VoIP: SP-6

Cable Telephony & VoIP: SP-6
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Agenda
 Technology choices and issues
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CBR (Constant Bit Rate)
Hybrid VoIP
PacketCable VoIP
SIP VoIP
TM
 Build versus outsource
 Cable telephony market forecast
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Cable Telephony and VoIP SP-6
CBR - Constant Bit Rate
(Circuit Switched)
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Proprietary technology
Over cable/HFC
Provides same features and user experience as legacy networks
Uses legacy billing systems, announcement servers and OSSs
NIU: Network Interface Unit
HDT: Headend Digital Terminal
CMTS: Cable Modem Termination System
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Cable Telephony and VoIP SP-6
Hybrid VoIP
(Circuit Switched and VoIP)
DSL
Modem
DSLAM
PSTN
Router
Cable
Modem
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CMTS
RDT-8
GR-303
Gateway
Local
Exchange
PacketCable LCS network architecture
Over cable/HFC, DSL, fiber, wireless
Provides same features and user experience as legacy networks
Uses legacy billing systems, announcement servers and OSSs
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Cable Telephony and VoIP SP-6
PacketCable VoIP
(Client/Server)
CMS/MGC
SS7
Media
Servers
NCS
TGCP
PSTN
IP Network
BTX-8
Broadband Access Network
 PacketCable VoIP network architecture
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LE
Switch
Softswitch (CMS/MGC) control
Secure voice and signaling
E-911 and CALEA (wire tapping) compliant
NCS: Network Call Signaling
TGCP: Trunking Gateway Control Protocol
CMS: Communications Management Server
MGC: Media Gateway Controller
Cable Telephony and VoIP SP-6
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SIP VoIP
(Peer to Peer)
Source: BroadSoft
 IETF SIP architecture
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SIP application server control
Open standard with broad range of services
CALEA (wire tapping) compliance issues
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Cable Telephony and VoIP SP-6
To Outsource or Not To Outsource
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Outsource advantages
• Many cable MSOs have no experience with telephony
• Telephony service providers know how to offer reliable
service
• Either way, offnet calls have to be handled by the PSTN
• Lower capital expenditures
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Outsource disadvantages
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Who owns the customer? It has to be the cable company.
Integrating billing systems: Customer gets one bill
Who gets the trouble call?
Cable company reputation in the hands of its outsourcer
Are you getting PacketCable compliant service?
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Cable Telephony and VoIP SP-6
Outsource Issues
 Outsource only call control
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Cable company owns media gateways
Telco owns the softswitch
 Outsource only off net media handling
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Cable company owns the softswitch
Telco owns the media gateways
 Outsource the whole VoIP network
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Integrate the billing and customer management
systems
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Cable Telephony and VoIP SP-6
Market Forecast (IDC 2/04)
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Cable Telephony and VoIP SP-6
Market Forecast
(Friedman, Billings, Ramsey – 12/03)
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Cable Telephony and VoIP SP-6
Thank You!
Larry Greenstein
Director of Product Management
Nuera Communications
10445 Pacific Center Court
San Diego, CA 92121
+1 (858) 625-2400
[email protected]
http://www.nuera.com
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Cable Telephony and VoIP SP-6