1presentation_id © 1999, cisco systems, inc. cisco voice concepts avvid architecture for voice,...
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1Presentation_ID © 1999, Cisco Systems, Inc.
Cisco Voice ConceptsAVVID
Cisco Voice ConceptsAVVID
Architecture for Voice, Video, and Integrated Data
‘Emerging Voice Technologies’
Architecture for Voice, Video, and Integrated Data
‘Emerging Voice Technologies’
2Presentation_ID © 1999, Cisco Systems, Inc.
Peter [email protected] [email protected]
Senior Consulting Engineer
Cisco Enterprise Line Of Business Technical Consultancy
Senior Consulting Engineer
Cisco Enterprise Line Of Business Technical Consultancy
2Presentation_ID © 1999, Cisco Systems, Inc.
www.cisco.comIBM Training Session 1-FEB00- Slide number 3 of 43
AgendaAgenda
• The World Is Changing
• Future Networking Trends
• Packet Voice
–The Choice
–VToA/VoFR or VoIP/VoIPoFR
• Cisco AVVID Architecture
• What is needed to make this work
• Summary & Conclusions
4Presentation_ID © 1999, Cisco Systems, Inc.
The World Is ChangingThe World Is Changing
www.cisco.comIBM Training Session 1-FEB00- Slide number 5 of 43
Copyright, 1995-1999 Network World, Inc. All rights reserved.
Copyright, 1995-1999 Network World, Inc. All rights reserved.
http://www.nwfusion.com/buzz99/buzzcon.html
• Technology enhancements
• Standards
• Costs
www.cisco.comIBM Training Session 1-FEB00- Slide number 6 of 43
The World is changing….The World is changing….
www.cisco.comIBM Training Session 1-FEB00- Slide number 7 of 43
Personalised ServicesPersonalised Services
www.cisco.comIBM Training Session 1-FEB00- Slide number 8 of 43
“”
E-mail exceeded voice as primarybusiness communication medium in 1998.
Frost and Sullivan
Communication TrendsCommunication Trends
www.cisco.comIBM Training Session 1-FEB00- Slide number 9 of 43
The Trend ContinuesThe Trend Continues
www.cisco.comIBM Training Session 1-FEB00- Slide number 10 of 43
0
1
2
3
4
5
6
Rel
ativ
e L
oad
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999E 2000E
Year
New WorldNew World
Voice
Old WorldOld World
Data
Source: ElectroniCast, BT Alex Brown Research
New World Createdby Explosive Data Growth
New World Createdby Explosive Data Growth
““Already there is more data transmitted over BT’s PSTN network than voice calls….Already there is more data transmitted over BT’s PSTN network than voice calls….Over the course of the next few years, BT’s entire Over the course of the next few years, BT’s entire
UK voice network will be replaced by a system based on internet technology.”UK voice network will be replaced by a system based on internet technology.”Bill Cockburn, BT UK MDBill Cockburn, BT UK MD
Source: Financial Times, November 5 1998
11Presentation_ID © 1999, Cisco Systems, Inc.
Networking TrendsNetworking Trends
11F0_4339_c1 © 1999, Cisco Systems, Inc.
www.cisco.comIBM Training Session 1-FEB00- Slide number 12 of 43
• Today’s networks were not designed to handle the future converged data, voice, and video demands
–Separate infrastructures for data, voice, and video
–Application integration difficult
Today’s NetworksToday’s Networks
Video
PBX
TDM
Circuits
Voice Mail
IP
Web
DSLCableDial
ISDN
Extranet
E-Commerce
H.320
Room-Based
H.323
Desktop Video
VoiceE-Mail
www.cisco.comIBM Training Session 1-FEB00- Slide number 13 of 43
MultiService ApplicationsMultiService Applications
• Appliance Convergence
–All applications onto an integrated platform
–Includes telephony
• Customer Services
–Virtual Call Centres
• Unified Messaging
–Voicemail & Email
• Remote Working
–Access to information is now key !
• Distance Learning
–Desktop Video
–Live chat back
Voice, & Cisco See Voice As
Another Latency-SensitiveIP Application
“
”
www.cisco.comIBM Training Session 1-FEB00- Slide number 14 of 43
Packetized Voice
IP
WebE-Mail
DSLCable
Dial
ISDNExtranet
E-Commerce
IP Phone
Network PBX
Internet Call Center
Data
Video
Internet EcosystemInternet Ecosystem
• New World Architecture–Highly Adaptive, Open, Scalable, and Converged
15Presentation_ID © 1999, Cisco Systems, Inc.
So What Can We Do To Voice ?So What Can We Do To Voice ?
www.cisco.comIBM Training Session 1-FEB00- Slide number 16 of 43
3 Options3 Options
• Do nothing–Well it works so don’t try and fix it !
• Play safe–Lets use another transport system, but leave the PBX’s in control !
• Move into the real world–Converge the networks down to a single infrastructure that includes voice
Let’s look at each one
17Presentation_ID © 1999, Cisco Systems, Inc.
Before we do, how do we make a call today ?Before we do, how do we make a call today ?
www.cisco.comIBM Training Session 1-FEB00- Slide number 18 of 43
DS0
OC3/12
DS1
DS0
DS1
OC3/12
CustomerPremise
LocalCO Interexchange Local CO
DS3DS3DS3
DS1DS1
OC48 OC48
DS3 DS3DS3
DS1DS1
OC48
3/1 DACS
SONETADM
SONETADM
3/1 DACS
DS0DS0 DS0Class 5Switch
Class 4Switch
Class 4Switch
Class 5Switch
CustomerPremise
Today’s Carrier Voice InfrastructureToday’s Carrier Voice Infrastructure
DS0
Need to make this simpler, flexible, and cheaper.
CustomerPremise
CustomerPremise
LocalCO
Interexchange LocalCO
OC-48c
OC-48c
Ethernet WDM
OC-48c
EthernetDS1
DS1
OC-48c
~~~~~~~~~~~~
19Presentation_ID © 1999, Cisco Systems, Inc.
VoTDMVoice Over TDM
Let’s leave it alone option
VoTDMVoice Over TDM
Let’s leave it alone option
www.cisco.comIBM Training Session 1-FEB00- Slide number 20 of 43
VoTDMVoTDM
• Proprietary–At the Enterprise level
• Based upon switching at the 64K DSO
• Pre-dominantly static connections
• Adds, moves and changes are difficult–When did you last move office ?
• Hard to adapt to new technology trends–My PBX is IP ready ? What does that actually mean ?
• Hierarchical deployments–Expensive
21Presentation_ID © 1999, Cisco Systems, Inc.
VToAVoice Telephony Over ATM
Let’s change the transport mechanism option
VToAVoice Telephony Over ATM
Let’s change the transport mechanism option
www.cisco.comIBM Training Session 1-FEB00- Slide number 22 of 43
Voice Telephony Over ATM - VToAVoice Telephony Over ATM - VToA
• Solution –Leased Line Replacement - Digital Connection
–Various Compression Techniques
–Enables cost savings through better use of bandwidth
–Standards-based compression combined with silence suppression & dynamic voice switching offers a scalable solution
ForeignATM
NetworkOC-3OC-3 STM-1STM-1
T3/E3T3/E3 n x T1/E1n x T1/E1
T1/E1T1/E1 T1/E1T1/E1
PBXPBX
PBX
PBXPBX
PBX
www.cisco.comIBM Training Session 1-FEB00- Slide number 23 of 43
Advanced VToA Advanced VToA
• Interpret the CCS from the attached PBX’s and route according to the profile that has been set in the VSC system
–Will include bearer capability statements ensuring correct compression is used.
• High-performance, highly scalable, distributed voice switching capability
• Majority of PBX signalling systems supported
• Reduces routing complexity and costs.
T1/E1
T1/E1PBX
PBX
PBX
PBX
T1/E1 PBX
Voice Switching
www.cisco.comIBM Training Session 1-FEB00- Slide number 24 of 43
7 - 14 kbit/s of b/w per call7 - 14 kbit/s of b/w per call
Payload: 305 8
ATM Header DLCI
6 4
PAD AAL5Voice Header
The BandwidthThe Bandwidth
• For CBR–E1 takes 2.3 Mb/s
• For DBCES–Depends on the number of active channels
• For VBR
25Presentation_ID © 1999, Cisco Systems, Inc.
VoIPVoice Over IP
Let’s move to the New World option
VoIPVoice Over IP
Let’s move to the New World option
www.cisco.comIBM Training Session 1-FEB00- Slide number 26 of 43
The Standards Based Voice ApproachThe Standards Based Voice Approach
IP Gateway(to PSTN)
IP Phone (Client)Gatekeeper
Packet LAN
MCU
Interoperability?YES! ITU H.323
• H.323 Devices
–Gatekeeper (admission & control) & Gateway (IP to TDM)
–MCU (conference mgr. & bridge)
–Client (phone, PC, etc.)
• H.323 Signalling & Control
–H.225 - Signalling & Packetization
–H.245 - Media Control
–H.235 - Security
–H.450 - Supplementary Services
–T.120 - Data
• H.323 Media Formats
–G.711 (64Kbps), G.723.1 (6.4Kbps & 5.3Kbps), G.729 (8Kbps), H.261, H.263 (video)
www.cisco.comIBM Training Session 1-FEB00- Slide number 27 of 43
Basic VoIPBasic VoIP
Phone to Phone3600 3600
FXS FXSIntranet
Phone to Phone through PBXs and Key Systems
3600 3600E&M E&M
Intranet
Key System PBX
Legacy Phone to Legacy Phone
PBX Trunking
www.cisco.comIBM Training Session 1-FEB00- Slide number 28 of 43
Branch Office Headquarters
4 to 12 Analogue ports
PSTN
QoSWAN
(Intranet)VV
VV
PBX
PBX
3640
3620
Converged IP InfrastructuresConverged IP Infrastructures
Branch Office Headquarters
PSTN
QoSWAN
(Intranet)VV
PBX
VV
3640
3640
• Call routing is still really in the domain of the PBX
www.cisco.comIBM Training Session 1-FEB00- Slide number 29 of 43
IP Header (20) UDP (8) RTP (12)
PAYLOAD : 20Header is 40 bytes
13 - 26 kbit/s of bandwidth per call
Compressing RTP Header gives 4-5 PAYLOAD : 20
6-11 kbps of bandwidth per call !
Bandwidth Per IP CallBandwidth Per IP Call
• 20ms @ 8kbit/s yields 20 byte payload of compressed voice and 40 byte header
30Presentation_ID © 1999, Cisco Systems, Inc.
AVVID Architecture for Voice, Video, and Integrated Data
AVVID Architecture for Voice, Video, and Integrated Data
30F0_4339_c1 © 1999, Cisco Systems, Inc.
www.cisco.comIBM Training Session 1-FEB00- Slide number 31 of 43
Old World ArchitecturesOld World Architectures
Yesterday’s PBX
Proprietary Ckt switch
Card(s)Proprietary
interface
Applications (Voicemail/IVR)
Voice Path (TDM)
Signaling Path
PSTN
Proprietaryterminals
Proprietary interface
Proprietary Line
Card(s)
Proprietary Trunk Card(s)
Mainframe cabinet
Standard interface
Proprietary Processor
Card(s)Proprietary
interface
www.cisco.comIBM Training Session 1-FEB00- Slide number 32 of 43
Cisco AVVID An End-to-End ArchitectureCisco AVVID An End-to-End Architecture
Softphone
MessageMessageServerServer
Telephony Telephony ApplicationApplication
ServersServersPagingPagingServerServer
DirectoryDirectoryServersServers
ContentContentServerServer
ContentContentServersServers
IP PhonesPCs
Video
• Distributed
• Adaptive
• Distributed
• Adaptive
SERVICESERVICE SUPPORT
SUPPORT
Gateway Switch Router
Cisco IP FabricIntelligent Network Services
Platforms
InfrastructureClients Applications
• Open
• Manageable
• Open
• Manageable
MessageMessageServersServers
CallManagerCallManager
ServersServers
www.cisco.comIBM Training Session 1-FEB00- Slide number 33 of 43
AmtevaAmtevaEnterpriseEnterprise
uOneuOne
Intelligent Intelligent Call RouterCall Router
Voice MailVoice MailEmailEmailFaxFax
ICR
DirectoryDirectoryCallCall
ManagerManager
CallCallManagerManager
IPNetwork
PSTNPSTN
RouterRouter
TAPI, JTAPITAPI, JTAPI
SIP, MGCPSIP, MGCP
SMTPSMTP
IP, H323, SIP, MEGACOIP, H323, SIP, MEGACO
LDAPLDAP
RSVPRSVP
Call Admission, Call Admission, Call RoutingCall Routing
CLIENTSCLIENTS
INFRASTRUCTURE
CALL PROCESSINGCALL PROCESSING
APPLICATIONS APPLICATIONS
Cisco AVVID : An Open ArchitectureCisco AVVID : An Open Architecture
• An architecture not an IP-PBX– IP-PBX : That's like calling automobiles horse less carriages. Convergence is
moving voice onto data networks, and the term ”IP - PBX" implies the opposite.
www.cisco.comIBM Training Session 1-FEB00- Slide number 34 of 43
Cisco Voice StrategyCisco Voice Strategy
• Provide a network that allows calls to flow freely, and independent of what technology they traverse, with all the existing features you have come to expect, and more, whilst adhering to standards.
Signaling Interface
Call Manager Appliance
Voice Path (TDM)
Signaling Path
Trunk interfaceMedia/signalinginterface
Ethernet phonesand
PC applications
Media/signalinginterface
TCP/IPNetwork
Appliance
Applications Server (Voicemail/IVR)
PSTN
35Presentation_ID © 1999, Cisco Systems, Inc.
Cisco Architecture Solutions Branch Office , Campus Voice, Telecommuter Reach, Virtual
Call Centre, Contact Centre, & Unified Messaging
Cisco Architecture Solutions Branch Office , Campus Voice, Telecommuter Reach, Virtual
Call Centre, Contact Centre, & Unified Messaging
35F0_4339_c1 © 1999, Cisco Systems, Inc.
www.cisco.comIBM Training Session 1-FEB00- Slide number 36 of 43
H.323eg NetMeeting
H.323VoIP
PSTN
IP
IP
CiscoCall Manager
Branch Office SolutionBranch Office Solution
• CCN based Call Processing
• Connects to both VoIP or PSTN
• PBX interwork at Central site
• Current Branch Options
• Data network enhances apps–virtual call center
–unified messaging
www.cisco.comIBM Training Session 1-FEB00- Slide number 37 of 43
Enterprise Extension for TelecommuterEnterprise Extension for Telecommuter
• Enable popular features:–Hold, Call forward, Conference
• Easy integrate to call center apps
• Still make local phone call
• IP Telephony enables integrated mobility
x237EnterpriseNetwork
PSTN
PBXPBX
PSTN
PBXPBX
www.cisco.comIBM Training Session 1-FEB00- Slide number 38 of 43
PBX
Campus SolutionCampus Solution
• Campus Extension
• PBX scaling option–Prevent new spend on proprietary PBX solutions
• New Campus installations– Unified Cabling Infrastructure
– Open IP based solutions with end user mobility
– New Voice Apps e.g. unified messaging
– Reduced operations costs, e.g. adds/moves/changes
39Presentation_ID © 1999, Cisco Systems, Inc.
What is needed ?What is needed ?
39F0_4339_c1 © 1999, Cisco Systems, Inc.
www.cisco.comIBM Training Session 1-FEB00- Slide number 40 of 43
Applications Support InfrastructureApplications Support Infrastructure
End to EndEnd to End
IPIP
ConvergedConverged WANWAN
VoiceVoice
ConvergedConverged End to endEnd to end
IP TelephonyIP Telephony
New WorldNew World
ApplicationsApplications
C/CentreC/Centre UMUM
InternetInternet BusinessBusiness SolutionsSolutions
CRM, WO,CRM, WO, SCMSCM
Ecosystem Partners
41Presentation_ID © 1999, Cisco Systems, Inc.
Summary & ConclusionsSummary & Conclusions
41F0_4339_c1 © 1999, Cisco Systems, Inc.
www.cisco.comIBM Training Session 1-FEB00- Slide number 42 of 43
Summary & ConclusionSummary & Conclusion
• Cisco AVVID Packet Voice Is A Real Solution–Choice of technologies, both integrate with each other.
–Essential support for legacy systems maintained
• Cisco AVVID Architecture–Powerful, flexible IP architecture that supports Intelligent Integrated Applications
• Cisco AVVID Advanced Applications–Unified Messaging, IP Contact Centres, Collaboration
• The world is changing, think hard about all new spend on old world infrastructure products - remember the quote from BT.
43Presentation_ID © 1999, Cisco Systems, Inc. www.cisco.com