Cisco Systems
IP - Telephony
© 2002, Cisco Systems, Inc.
Joachim Baumann
Cisco Systems
Hamburg
1
Agenda
• Cisco AVVID
Architecture of Voice, Video and integrated Data
Cisco IP – Telephony vs. PBX
• Cisco Call Manager 3.3
CallManager Features, IPMA, Attendant Console,
Cisco IP – Phones, Deployment,
Redundance – Availability
IP – Telephony Infrastructure
• Cisco Call Manager Applications
Cisco Conference Connection
Cisco Unity
Cisco Personal Assistant
© 2002, Cisco Systems, Inc.
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Cisco AVVID System Architecture
TAPI, JTAPI, SMDI
Cisco Unity
Cisco IPCC
Call Processing
Call Admission, Call Routing
CallManager
Directory
Adaptive
Distributed
Applications
Cisco IOS® Network Services
Gateway Router Switch
Clients
© 2002, Cisco Systems, Inc.
Video
Wireless SoftPhone IP Phone
Open
Manageable
Infrastructure
PC
3
Basic Call Processing
VM/UM
1111 Dials 2222
1-Call
Setup
1111
4-Connect
RTP Stream
3-Ringback
Call
Manager
2-E.164 lookup
3-Ring
Router/GW
2222
© 2002, Cisco Systems, Inc.
IP
WAN
PSTN
4-Offhook
4
IP Telephony Architecture
IP Telephony Replaces PBX Architecture
Call
Processing
Cisco
MCS 7800
Series Server
Ethernet
LAN Switch
Voice-Enabled
Router or Gateway
© 2002, Cisco Systems, Inc.
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Cisco IP - Telephony
Call Manager 3.3
© 2002, Cisco Systems, Inc.
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Cisco CallManager 3.3
• Call processing intelligence
• Business telephony features
• Scalability - 30,000 devices
• Redundant call processing
• Single point of configuration
• Interoperability - H.323, MGCP,
Q.SIG, NSF
• Flexible dial plan partitioning
• Extensibility:
TAPI
JTAPI
Phone XML
Config database API
© 2002, Cisco Systems, Inc.
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Cisco CallManager 3.3
Server Platforms
• Host for CallManager and Apps
• Orderable Cisco Platforms:
MCS-7845 – cluster size >10,000
MCS-7835 – cluster size <=10,000
MCS Server Family
MCS-7825 – cluster size <=4,000
MCS-7815 – cluster size <=200
ICS-7750 – integrated chassis with
router, gateway, call processing, voice
mail, IVR application blades
• Third Party-certified platforms – with
software-only CallManager CD-ROM
packages
ICS-7750
© 2002, Cisco Systems, Inc.
Compaq DL320, DL380 series
8
Cisco CallManager Features
New
Convergence
Features
Enhanced
Features
Legacy
Voice
Features
Distributed Processing
Integrated Voice Compression
Plug-and-Play Installation
Standard-based
Automatic Phone M/A/C
Web-Based Administration
Remote Serviceability
Hold
Transfer
Call Forward
Speed Dial
Scalability, Reliability ,Feature Transparency
Automatic Bandwidth Selection
Easy to set up
Open Architecture
User Mobility
Web-Based User Directory
Direct Inward/outward Dial
Last Number Redial
Call Detail Recording
Automatic Route Selection
Conference
Pick-up group
User Restriction
Toll-Quality Voice
http://www.cisco.com/warp/public/cc/pd/nemnsw/callmn/prodlit/cm33_ds.pdf
© 2002, Cisco Systems, Inc.
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QSIG Support
The Requirement
• Inter-PBX network features
• Ability to have centralized voicemail
Existing
Voicemail
System
CallManager
PBX
Features
PSTN
PSTN
MGCP
© 2002, Cisco Systems, Inc.
PRI
10
Call Manager 3.3 Update cont.
IPMA / Attendant Console
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CallManager 3.3-Productivity/Functionality
IPMA (cont’d)
• Elements (cont’d):
IPMA is redundant CTI/XML-based
service
Scalability – max 1,250 managerassistant pairs per cluster
1 Assistant- 5 Managers
Secondary assistant failover
Manager/assistant profile
configuration
Call filtering example
Immediate divert/transfer by
assistant to voicemail example
Assistant Console View
Manager activity monitoring by
assistant example
Manager call handling by assistant
example
© 2002, Cisco Systems, Inc.
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CallManager 3.3-Productivity/Functionality
IPMA Assistant Console MyManager Monitor
• Active only if the assistant is serving the manager, else grayed
out.
• View manager feature status like – “Do Not Disturb”, “Divert All”,
“Assistant Watch”, “Filter Calls”, “Filter Mode”.
• View the calls on the manager line.
• Intercom the manager.
• Change manager features like DND, Divert All and filter.
© 2002, Cisco Systems, Inc.
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CallManager 3.3-Productivity/Functionality
IPMA Manager Feature – Phone Display
• Displayed on the call plane
and when there are no calls
on the phone
• Displays feature status for
Assistant Watch, Assistant
Selection, Filter, DND, and
DivAll
• View the call being handled
by the assistant on your
behalf
© 2002, Cisco Systems, Inc.
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Attendant Console Operation— Client
GUI Summary
• Drag-and-drop hold, transfer
• Line states
Idle line
Inbound call
Hold
Busy
Unknown
• Directory Pane
Search by first, last
name or department
Sortable columns
• Fully localized GUI
All Cisco CallManager 3.2
supported languages
© 2002, Cisco Systems, Inc.
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New Features
• Fully configurable, browser independent user interface
• Directory can be sorted by department, first or last name
• Client can control as many lines as configured on IP
phone device (including lines on 7914)
• Fully customizable keyboard shortcuts
• Context sensitive icon based call control icons
• Consult transfer
• Call Park (only when using CallManager 3.3)
• Ad hoc conferencing
© 2002, Cisco Systems, Inc.
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Cisco IP – Telephony
IP-Phones / Roadmaps
© 2002, Cisco Systems, Inc.
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Cisco Portfolio of IP Phones and
Analog Adaptors/Gateway
Cisco IP Phone 7960G
Cisco IP Phone 7940G
•
•
•
•
•
•
•
145X100 pixel, grayscale display
4 soft keys
2 programmable line keys
High quality speaker phone
Line/local power
2-port Ethernet switch
XML applications
2x24 character display
6 feature keys
Single line
Line/local power
7910G+SW has a 2-port
Ethernet switch
Cisco IP Conference
Station 7935
• High quality, state of the art
speakers
• Hands-free conference phone
• Standard features
Cisco IP Phone 7905G
• 192x64 pixel, monochrome
display
• 4 soft keys
• Line/local power
• 1 RJ-45
• Single line
© 2002, Cisco Systems, Inc.
145X100 pixel, grayscale display
4 soft keys
6 programmable line keys
High quality speaker phone
Line/local power
2-port Ethernet switch
Supports/enables XML apps.
Cisco IP SoftPhone
• Windows-based IP phone client
• Phone control and standalone
modes
• VPN client support
• USB handset support
• Intuitive user interface
Cisco IP Phone 7910G
and 7910G+SW
•
•
•
•
•
•
•
•
•
•
•
•
Cisco VG248 Analog
Phone Gateway
• 48 FXS Ports
• Single 10/100 port, single
PSU
• 2 RJ-21 Telco connectors
• Fax and modem
• Legacy voicemail (SMDI)
• Fully featured
Cisco ATA 186/188
• 2 FXS Ports
• 1 RJ-45 10BaseT uplink (Cisco 186 ATA)
• 1 RJ-45 10/100BaseT data port
(Cisco ATA 188)
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79xx – ‘High End’ Phones
Model 1
Mono touch screen ¼ VGA
5 soft keys and 1 ‘mode’ key
8 illuminated programmable line keys
External speaker and mic jacks
Full-duplex speaker phone
Line/Local power
2-port Ethernet switch
Model 2
Colour touch screen ¼ VGA
5 soft keys and 1 ‘mode’ key
8 illuminated programmable line keys
External speaker and mic jacks
Full-duplex speaker phone
Line/Local power
2-port Ethernet switch
Model 3
Inbuilt video camera
Colour touch screen ¼ VGA
5 soft keys and 1 ‘mode’ key
8 illuminated programmable line keys
External speaker and mic jacks
Full-duplex speaker phone
Line/Local power
2-port Ethernet switch
© 2002, Cisco Systems, Inc.
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Cisco 7920 – 802.11b Wireless Handset
• NTE List Price: $599 USD
• Compatible with 340/350/1200 802.11b DS
Access Points. Voice QoS + VLAN
support.
• 6 DN’s/Speed Dials, Call Hold, Call
Transfer, 3-way Conference Calling, Call
Park, Call Pick-Up, Call Forward, Call
Waiting, Calling Name / Number Display
• Minimum 4x16 display, Li-Ion battery, full
accessories – Charging cradle with USB.
• LEAP authentication, encryption,
roaming, handover, G.711/G.729A/etc.
• 450 character paging/messaging,
directory services (LDAP), XML support,
Data Services via USB.
© 2002, Cisco Systems, Inc.
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Cisco IP SoftPhone 1.3
• Windows-based IP Phone client for Cisco
CallManager
• Take your work extension with you on the road,
even if connected with VPN client over the Internet
© 2002, Cisco Systems, Inc.
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Cisco IP - Telephony
Deployment models
© 2002, Cisco Systems, Inc.
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Distributed Call Processing Deployments
Overview
CallManager
cluster
Applications
(VMail, IVR, ICD, ...)
Applications
CallManager
cluster
PSTN
Branch A
Headquarters
GK
IP WAN
Gatekeeper
CallManager
cluster
• CallManager and Applications located
at each site
Applications
• Up to 30,000 IP Phones per site
• 100+ sites
Branch B
• Transparent use of PSTN if IP WAN unavailable
© 2002, Cisco Systems, Inc.
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Centralized Call Processing
Overview
Applications
(VMail, IVR, ICD, ...)
PSTN
SRST-enabled
router
CallManager
Cluster
IP WAN
Branch A
Headquarters
• CallManager at central site
• Applications and DSP Resources can be
centralized or distributed
Branch B
• Supports up to 30,000 IP Phones per cluster (CM 3.3 = 5,000)
• Call Admission Control (limit number of calls per site)
• Survivable Remote Site Telephony for remote branches
© 2002, Cisco Systems, Inc.
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Cisco IP – Telephony
Redundance / Availability
© 2002, Cisco Systems, Inc.
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High Availability
WAN
PSTN
• Distributed application
processing
• Network fabric resiliency
and redundancy
• No single point of failure
Multiservice
WAN
Campus
CallManager
Clusters
CallManager
Clusters
Catalyst
Wiring Closet
© 2002, Cisco Systems, Inc.
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System Redundancy
IP WAN
A
Switches
Routers
E
B
X
D
C
End User PC
100M Ethernet
Network Design
© 2002, Cisco Systems, Inc.
CallManager Clustering
27
Cisco IP – Telephony
Infrastructur, Gateways
© 2002, Cisco Systems, Inc.
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Cisco Voice Gateways
Catalyst 6000
Catalyst 4000
ICS 7750
Cisco
AS5350
Cisco 2600
Cisco 3600
Cisco
AS5400HPX
Cisco
7200-VXR
Cisco 3700
Cisco 1750
ATA-186
Cisco VG200
© 2002, Cisco Systems, Inc.
VG248
29
VoIP Gateway
• T1/E1 Interface
T1-CAS, PRI, E1-R2
• VIC ports -- FXS, FXO, E&M, or BRI
• Caller ID and Analog DID
• Voice Codec Support
G.711, G.729(A, B, AB), G.723.1, G.726
• Features supported since 12.2.2XA (Jun 2001)
• CCM switchover & redundancy
• Supplementary services
• MGCP support for FXS/FXO interfaces
• Out-of-band DTMF relay
© 2002, Cisco Systems, Inc.
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Catalyst Network Core
Voice Gateway and Services
• Catalyst 6000 – Enterprise Core
• Catalyst 4000 – Regional Core
• T1/E1 PSTN/PBX gateway
• Analog PSTN/PBX gateway
(Catalyst 4000)
• Voice Network Service
Audio Conferencing
Audio Transcoding
© 2002, Cisco Systems, Inc.
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Campus Infrastructure
Automatic Subnet Placement and In-Line Power
Phone VLAN = 110
PC VLAN = 10
IP
802.1Q/p
IP Phone:
10.70.110.1
Desktop PC:
171.70.10.100
Catalyst Multiservice Port Provides Automatic Phone VLAN Configuration
4 Wires
In-line
power on
Catalyst®
Switches
48V DC Power
10/100 Ethernet
© 2002, Cisco Systems, Inc.
4 Wires
10/100 Ethernet
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Cisco Applications
CCC, Unity, Personal Assistant
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Schedule a Conference
• Simple Menu
Options
• One page
Conference Setup
• Hide conference
for Privacy
• Schedule
Recurring
Conferences
© 2002, Cisco Systems, Inc.
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Cisco Conference Connection
• Audio conference server
with web-based
scheduler
• Dial in to single number
• Cisco IP phone services
conference entry
• User accounts
synchronized with
CallManager LDAP
directory profiles
• Supports up to 100 ports
© 2002, Cisco Systems, Inc.
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Cisco Unity Communications Solutions
Cisco Unity Voice Messaging
•
IP Voice Messaging
•
Upgradeable to Unity Unified Messaging
•
Supports Cisco CallManager and/or several
legacy PBX integrations
Cisco Unity Unified Messaging
•
Full-featured Unified Messaging (UM) solution
•
Supports Cisco CallManager and/or
several legacy PBX integrations
•
Compatible with MS Exchange 5.5 & 2000
•
Will be compatible with Lotus Domino
Cisco Personal Assistant
•
Personalized call routing rules with call screening
and “follow-me”
•
Speech enabled voicemail access, name dialing,
and ad hoc conferencing
•
IP Phone Productivity Services for access to
calendar, e-mail, voice mail, & contacts
© 2002, Cisco Systems, Inc.
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Cisco Unity
ViewMail for Outlook Delivers
Leverages what users already know
Compose e-mail, voice, and fax, from a
single interface
Forward voice with text, text with voice
© 2002, Cisco Systems, Inc.
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Cisco Personal Assistant 1.3
Enhanced Productivity
• Route calls by user-defined rules
– Time of day
– Calendar
– Who the caller is
• Forward calls to user-defined phone numbers
– Single number
– Series of numbers (i.e., office, mobile, or home)
– Follow me (forward all calls now)
• Screen calls
– Select which calls to accept in real time
© 2002, Cisco Systems, Inc.
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Cisco Personal Assistant 1.3
User Web Administration
What days do I
want to run
my rules?
© 2002, Cisco Systems, Inc.
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Cisco Personal Assistant 1.3
IP Phone Productivity Services
• Log in to any IP Phone*
in CallManager cluster
for access
• From any desk, coworker’s office,
conference room, or
lobby phone
*Cisco IP Phone models 7940 and 7960
© 2002, Cisco Systems, Inc.
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Cisco Personal Assistant 1.3
More IP Phone Productivity Services
MailView
Access e-mail and Cisco
Unity voice mail from any
IP Phone in the cluster
Contacts
Synchronization
Synchronize personal
address book with
existing contact lists
Rule-set Activator
For call routing rules
© 2002, Cisco Systems, Inc.
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Cisco IP – Telephony
Security, Management
© 2002, Cisco Systems, Inc.
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Management
Provisioning and Reporting
• Provisioning: BAT
(IP phones), CVM
(network), QPM
PRO (QoS)
• Reporting:
ART
Fault Detection
• Voice Health
Monitor
• Pro-active fault
detection
• Real-time status
reports on CCM,
GWs, Apps
© 2002, Cisco Systems, Inc.
Element Management
• CW2000: RME 3.2,
Campus Mgr 3.1
• Inline powered
switches, CCM
• Handset tracking
• CCM topology
display
Performance Analysis
• IPM 2.2
• Real-time data
on delay, jitter,...
• Generate alarms
based on perf.
thresholds
43
Security
CallManager
Endpoints
A
• Minimize
Win2K services
• Apply NTFS
security
• Secure IIS
• Lock down SQL
• Use separate
addressing for
voice and data
• RFC1918 is
preferred
CCM Firewall
Campus Network
• Allow only call
control, LDAP,
management
• Control source
addresses
• Secure access
(TACACS+, SSH,
Radius)
• Use VLANs
• Use IP filters
between voice
and data network
Outside World
• No NAT across
Internet
• IOS DoS tools
• Use sensors
© 2002, Cisco Systems, Inc.
Internet
IP WAN
PSTN
44
CTE Einsatzmöglichkeiten
© 2002, Cisco Systems, Inc.
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