Cisco Unified Communications
Sizing Tool
January 2011
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
1
Contents
 Overview
 Features
 Caveats
 For More Information
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
2
Overview
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
3
Unified Communications Sizing Tool is Here
The Unified Communications Sizing Tool assists
with accurately sizing large and / or complex
Unified Communications systems.
Available on cisco.com
MS
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
4
What’s New in the Release 8.5(1)?
 Support for Cisco Unified Communications System Release
8.5(1) and new application features including Whisper
Coaching, Agent Greeting, Post Call Survey, Courtesy
Callback, Dual-mode Devices sizing, and Predictive and
Progressive outbound dialing.
 Additional hardware platform sizing options, including
updates for sizing Unified Communications on Unified
Computing System virtual machines (VMs).
 Improved, more comprehensive model for Cisco Unified
MeetingPlace 7.X and 8.X sizing.
 More detailed information is available in the 8.5(1) Updates –
Details section of this presentation.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
5
Key Benefits
Cisco Unity & Unity
Connection
Cisco Unified
Presence
V
PSTN & VXML
Gateways
Cisco Unified
Contact Center
Cisco Unified
MeetingPlace
Cisco Unified
Communications Manager
IP Communications System
Key
Benefits
C97-418641-00
Web conferencing
DSP Calculator
• Single tool which assists users with sizing of large and/or complex
IP Telephony or Contact Center systems; Supports sizing solutions
outside of bounds of Solution Expert
• System sizing tool, which understands how one component affects
other components in the system.
• Sizing for greenfield as well as existing deployments starting with
Unified Communications system version 5.1
• Free of charge
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
6
Entitlement
Unified CST is designed for use by Cisco Systems Engineers
with Unified Communications solution experience, or
individuals with equivalent abilities.
Available on cisco.com
 http://tools.cisco.com/cucst/
Who Can Access the Unified CST
 Any Cisco employee with cisco.com account
 Any partner with on of the following certifications:
• Advanced Unified Communications Specialization
• Master Unified Communications Specialization
• Multinational Master Unified Communications –
Satellite Specialization
• ATP-Customer Voice Portal
• Authorized Unified MeetingPlace Program
• ATP-Rich Media Communications
• ATP-Unified Contact Center Enterprise
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
7
Tool Features
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
8
Supported Systems & Products
Unified Communications System Releases:
5.1, 6.0, 6.1, 7.0, 7.1, 8.0, 8.5
IPT
Applications
Endpoints
• Cisco Unified Communications Manager
• Cisco Unity
• Cisco Unity Connection
• Cisco MeetingPlace
• Cisco Unified Presence
• Cisco Emergency Responder
Contact Center
• Cisco Unified Contact Center Enterprise
• Cisco Unified Customer Voice Portal
• Cisco Unified Expert Advisor
• Cisco Unified IP IVR
• Cisco Unified Intelligence Center
• Cisco Unified Contact Center Express
Infrastructure
• Cisco IOS Gateways
• Cisco Unified Border Element
• Cisco IOS DSP Resources
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
9
Legacy Sizing Tools
Cisco Unified
Presence
Cisco Unity
V
PSTN & VXML
Gateways
Cisco Unified
Contact Center
Cisco Unified MeetingPlace
Web conferencing
Cisco Unified
Communications Manager
IP Communications System
Customer Voice Portal
(CVP) Sizing Tool
Communications
Manager Capacity Tool
Then
It combines
it adds logic
the sizing
for sizing
algorithms
of new components
from few
previously
legacy tools
unavailable
into a single
in any
tool.
tool.
Unified Contact Center
Enterprise Sizing Tool
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
IPIVR Calculator
IP Resource Calculator
IPC Outbound Calculator
10
Legacy Sizing Tools
Cisco Unified
Presence
Cisco Unity
V
PSTN & VXML
Gateways
Cisco Unified
Contact Center
Cisco Unified MeetingPlace
Web conferencing
DSP Calculator
Cisco Unified
Communications Manager
Cisco Unified Contact
Center Express
Configuration and
Ordering Tool
IP Communications System
It is now the next generation tool / replacement
tool for a couple other legacy tools.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
11
Legacy Sizing Tools
Customer Voice Portal
(CVP) Sizing Tool
Cisco Unified
Presence
Cisco Unity
IPIVR Calculator
IP Resource Calculator
IPC Outbound Calculator
V
PSTN & VXML
Gateways
Cisco Unified
Contact Center
Cisco Unified MeetingPlace
Web conferencing
Communications
Manager Capacity Tool
Cisco Unified
Communications Manager
IP Communications System
Unified Contact Center
Enterprise Sizing Tool
Finally it adds system level intelligence to
make one, very powerful sizing tool.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
12
Sizing Options
System Release
Compatible Components
Individual Product
1
2
3
Best choice for new
deployments; Sizing for
Unified Communications
System Releases
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Best for existing
systems; Sizing for
custom systems built
with compatible Unified
Communications
products
Cisco Confidential
Best for sizing of
individual products; no
system-level sizing
13
Sizing Options
System Release
Compatible Components
Individual Product
1
2
3
Best choice for new
deployments; Sizing for
Unified Communications
System Releases
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Best for existing
implementations; Sizing
for compatible Unified
Communications
products
Cisco Confidential
Best for sizing of
individual products; no
system sizing
14
Sizing Options
System Release
Compatible Components
Individual Product
1
2
3
Best choice for new
deployments; Sizing for
Unified Communications
System Releases
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Best for existing
implementations; Sizing
for compatible Unified
Communications
products
Cisco Confidential
Best for sizing of
individual products; no
system sizing
15
Sizing Options
System Release
Compatible Components
Individual Product
1
2
3
Best choice for new
deployments; Sizing for
Unified Communications
System Releases
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Best for existing
implementations; Sizing
for compatible Unified
Communications
products
Cisco Confidential
Best for sizing of
individual products; no
system sizing
16
Easy Access to Documentation & Training
Unified CST features
readily accessible links to
all documentation and
training.
Available Documentation
& Training Includes:
 Context-sensitive Online
Help
 User Guide
 Frequently Asked
Questions
 Sizing Tutorial
 Overview & Introduction
Presentation
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
17
Dynamic Updates
Unified CST features
dynamic updates to sizing
results as input
parameters change
2. Output is immediately updated
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
18
Solution Cataloging
Unified CST features
solutions cataloging.
My Solutions view
includes useful information
such as:
 Solution name
 Status and percent
complete indicators
 Timestamp of last update
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
19
Auto-Save
Unified CST has an autosave feature, which
protects users from
losing their work.
Auto-save gets triggered
every time a user moves
to a different page.
User can save the
solution at any time by
using the “Save” button.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
20
Simple Navigation
Component Navigation Menu
Navigate questions for a specific
component
Solution Navigation Menu
Navigate between components
Unified CST features
simple yet powerful
navigation. The user is
able to navigate to any
part of the questionnaire at
any time.
Navigate anytime,
anywhere.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
21
Copy a Solution
Unified CST has a Copy
feature, which allows the
user to make a copy of an
existing solution.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
22
Send a Copy of a Solution
Unified CST has Send a
Copy feature, which allows
the user to send a copy of
their solution to another
user with a valid cisco.com
account.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
23
Export to .pdf
Unified CST has Export to
.pdf feature, which allows
the user to export a report
of the solution in .pdf
format.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
24
Meaningful User Messaging
Status Indicators
Unified CST features
meaningful error and
status messaging.
User Messaging:
Highlighting
for field with
error.
 Dynamic error message
 Highlighting for fields with
errors
 Status indicators in the
right-hand, solution
navigation menu
 Online, context-sensitive
help.
Meaningful error
messages
Online, contextsensitive help
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
25
Component-level Output (1/2)
Unified Communications
Manager
 Call processing utilization
per server
 Memory capacity utilization
 Phones capacity utilization
 CTI capacity utilization
 Estimated minimum number
of clusters
 Publisher servers
 TFTP servers
 Minimum Unified
Communications Manager call
processing server pairs
 Unified CST provides the user with relevant, componentspecific output.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
26
Component-level Output (2/2)
Voice Messaging
 Number of VMs needed
 Max voice recognition
sessions (ASR) allowed
 Max text to speech sessions
(TTS) allowed
 Ports per VM
 Summary of virtual
resources
Gateways
 Gateways needed
 DS0s needed
 T1s needed
 Gateway DS0 utilization
 Gateway resource capacity
utilization
 Unified CST provides the user with relevant, componentspecific output.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
27
Solution-level Output (1/4)
Solution Output:
Server or gateway quantity
needed, per product in the
following system equipment
categories:
 Unified Communications
Manager
 Unified CST provides the user complete hardware sizing
for the entire solution.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
28
Solution-level Output (2/4)
Solution Output:
Server or gateway quantity
needed, per product in the
following system equipment
categories:
 Unified Contact Center
Enterprise
 Unified CST provides the user complete hardware sizing
for the entire solution.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
29
Solution-level Output (3/4)
Solution Output:
Server or gateway quantity
needed, per product in the
following system equipment
categories:
 Gateways
 Cisco Emergency
Responder
 Voice Messaging
 Conferencing
 Cisco Intercompany Media
Engine
 Unified CST provides the user complete hardware sizing
for the entire solution.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
30
Solution-level Output (3/4)
Solution Output:
Server or gateway quantity
needed, per product in the
following system equipment
categories:
 Cisco Unified Presence
 Cisco Expert Advisor
 Cisco Customer Voice
Portal
 Unified Contact Center
 Unified CST provides the user complete hardware sizing
for the entire solution.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
31
Solution-level Output (4/4)
Solution Output:
Server or gateway quantity
needed, per product in the
following system equipment
categories:
 Unified Contact Center
 Unified CST provides the user complete hardware sizing
for the entire solution.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
32
Solution-level Output (4/4)
Solution Output:
Also includes a summary of
Unified Computing System
resources needed.
 Unified CST provides the user complete hardware sizing
for the entire solution.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
33
Support
 Support via PDI Helpdesk
 US/Canada/Latin America:
-7AM-9PM Eastern (M-F)
 EMEA:
-7AM-6PM Local (M-F)
APAC/Japan:
-12PM-6PM (Sydney Time,
Monday)
-7AM-6PM (Local) (TuesdayFriday)
 Feedback form
 Unified CST provides support via PDI Help Desk.
 http://www.cisco.com/go/pdihelpdesk
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
34
Providing Feedback
 We welcome and appreciate
your feedback.
If sending feedback on a specific
solution, it always best to send us
a copy of your solution. You can
send a copy of your solution to
cucst_feedback using the Send
Copy feature.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
35
Caveats
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
36
Caveats
 Intended for enterprise system sizing
initially. Express and SMB solutions
are supported in Quote Builder and
Solution Expert.
 Bill Of Materials needs to be
generated with the help of the
Dynamic Configurator Tool or the
Multi-Line Configurator Tool post
sizing.
 Sizing of upgrades is not supported.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
37
Migrations & Upgrades
Unified CST does not support system or product upgrades, however the
tool can assist users with upgrades and migrations in the following
manner:
 Documentation for the Unified CST will include information on where to
find data being requested by the tool in existing systems.
 Users will then be able to size the system they are planning to deploy.
 Next, based on the sizing output and information about the already
owned hardware, the users can determine what additional hardware they
need to secure to support the planned deployment.
Cisco Unified
Presence
Cisco Unity
Cisco Unified
Contact Center
Cisco Unified
Communications Manager
IP Communications System
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
TDM & VXML
Gateways
V
Cisco Unified
MeetingPlace
38
Updates - Details
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
39
Cisco Unified Communications Manager 8.5
Call Processing Capacity
 There has been an overall increase in the Unified Communications Manager (Unified CM) call processing capacity
across all call types. Calls for certain protocols are improved substantially:
 SCCP to SCCP Calls in detailed tracing mode show an improvement of 15%. In default tracing mode, the improvement
is marginal.
 SIP to SIP Calls in detailed tracing mode show an improvement of 22%. In default tracing mode, the improvement is
10%.
 SIP to H.323, SIP to MGCP, SCCP to H.323, SCCP to MGCP all show an improvement of between 15 to 20%.
Constants
 Server and cluster limits such as those for Phones, Cluster Size, CTI, Locations, Regions, Number of Gateways, etc.,
are unchanged.
Memory Usage
 Overall memory usage for a typical system deployment is expected to be comparable to the 8.0(3) release. In particular:
 Memory required for the configuration and registration of a single line unsecure SCCP Phone has increased by 18%, and
for single line secure SCCP phones by 12%. Extra memory required for adding additional lines in SCCP phones has
decreased by about 16%.
 Memory required for the configuration and registration of a single line for unsecure SIP phones increases by 11%, and
for secure SIP phones by 10%. Extra memory required for adding additional lines in SIP phones has increased by about
100%.
 Memory required for other configurations and overheads such as that for CTI, Partitions, Calling Search Spaces,
Translation Patterns, Route Patterns, etc., are all unchanged.
 Memory required for calls placed between two SCCP endpoints is reduced by 18%.
 Memory required for calls placed between two SIP endpoints remains unchanged.
 Memory required for calls between SCCP and any other protocol is reduced between 10-15%.
 Memory required for calls between SIP and any other protocol remains unchanged.

Server Performance

The VM - CUCM_7500 is equivalent in performance to using MCS-7845-I2/MCS-7845-H2 servers. The VM CUCM_2500 is equivalent to using MCS-7835-I3/MCS-7835-H3 servers. The VM - CUCM_1000 is equivalent to MCS7825-I5 servers.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
40
Cisco Unified Contact Center Enterprise 8.5
Maximum Capacity Increase

Maximum number of local agents supported on high end servers has been increased from 1000 to 1500, provided the
deployment uses Unified CVP. Note that the real number of agents that may be supported depends on other traffic and
activities in the system.
VM Platform Performance

The SIP call capacity and number of ports supported on the VM-based Unified CVP Call Server has been reduced by
about 25%.
New Features

Sizing for two new features in 8.5(1) will be added: Agent Greeting and Whisper Announcement. A call with Agent
Greeting enabled is equivalent to two calls with it disabled. That is, call handling capacity, in calls per second, is cut in
half if Agent Greeting is enabled for all calls.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
41
Cisco Unified Contact Center Express 8.5
Performance factors for Unified Contact Center Express (Unified CCX) Release 8.0 and earlier features remains unchanged. The
server set that supports 8.0 will support 8.5 as well with some notable additions marked below. Some capability changes
relating to outbound agents and IVR ports are noted below. Changes in 8.5 are as follows:
New Features
 High Availability over WAN of Unified CCX servers
 Outbound Predictive/Progressive IVR based dialing. It takes the number of outbound IVR ports as input and calculates the
BHCC that Unified CCX, gateways, and Unified CM must handle.
 Licensed outbound and inbound ports are tracked separately.
New Limits
 Maximum number of agents supported is 8.5 has increased to 400. This higher limit is supported on the VM - UCCX_400
platform.
 Maximum number of preview outbound agents is now 100 (instead of the number of total agents).
 New limits on support of outbound IVR ports and outbound BHCC (busy hour call completions) in various deployment modes
have been defined. These are as follows:
• 7816 Class servers do not support Outbound IVR Ports and can support a maximum of 1800 BHCC in standalone and high
availability (HA) over LAN modes, and 750 BHCC in HA over WAN mode.
• 7825 Class servers and VM - UCCX_100 support up to 75 Outbound IVR Ports and a maximum of 2000 BHCC in standalone and
HA over LAN modes, and 750 BHCC in HA over WAN mode.
• 7835 Class servers support up to 75 Outbound IVR Ports and a maximum of 2600 BHCC in standalone and HA over LAN modes,
and 2250 BHCC in HA over WAN mode.
• 7845 Class servers and VM - UCCX_300 support up to 150 Outbound IVR Ports and a maximum of 5000 BHCC in standalone and
HA over LAN modes, and 3250 BHCC in HA over WAN mode.
• VM - UCCX_400 supports up to 150 Outbound IVR Ports and a maximum of 6000 BHCC in standalone and HA over LAN modes,
and 5000 BHCC in HA over WAN mode.
New Servers
 VM definition will be in the format that matches OVA templates. Three templates have been defined, VM - UCCX_400, VM UCCX_300, and VM - UCCX_100, each specifying the number of agents that it can support.
 Appliance based servers (CXA1) are not supported for applications such as Compliance Recording (CR), Quality Manager
(QM), Advanced Quality Manager (AQM), Workforce Management (WFM), and Supervisor Recording/Monitoring. A new VM
server, VM - UCCX-WFO, will be defined for these applications.
 Actual hardware platforms choices, including B200 M1, B200 M2, C200 M1, C200 M2, and C210 M2, will also be offered
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
42
Other Applications
CISCO UNIFIED PRESENCE
New Features

Support for IM only mode and full UC mode

Support for both EWS and WebDAV versions of connection to Microsoft Exchange
New VM Platforms

New VM platforms, VM - CUP_5000, VM - CUP_2500, and VM - CUP_1000, are added. They are equivalent to MCS7845, MCS-7835, and MCS-7825 class of servers.
CONFERENCING & COLLABORATION 8.X
Usage Estimation

Sizing models are enhanced to better estimate the maximum number of conferencing sessions at the top of the hour.
Capacity Change for High Complexity Codecs

Session capacity has decreased by 33% for high complexity codecs (supported in Hardware Media Resource).
CISCO GATEWAYS & DSP
Releases

New IOS releases 15.1(2)T and 15.1(3)T are added. Gateway capacity with new releases is identical to IOS 15.1(1)T.
New Gateway

A new, ASR 1001, platform is introduced as CUBE only. Its capacity is approximately 67% of the ASR 1004.
DSP Calculator

Support for new Network Modules (VWIC3) is introduced. The VWIC3 supports up to 4 T1/E1 WAN interfaces.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
43
Other Applications
CISCO NETWORK MANAGEMENT APPLICATIONS
Performance factors for 8.0 and earlier features will remain unchanged. The same server set that is calculated for 8.0
remain valid for 8.5 as well.
CISCO EMERGENCY RESPONDER 8.5
Server Support

Three new VM platforms will be introduced for Cisco Emergency Responder: VM - CER_12000, VM - CER_20000, and
VM - CER_30000. These VM platforms are identical to the VM platforms for Unified CM, supporting 1000, 2500 and
7500 Unified CM users, respectively. When used to support Cisco Emergency Responder, these VM platforms will
provide capacity equivalent to the MCS-7825, MCS-7835, and MCS-7845 classes of servers, respectively.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
44
Products & Solutions NOT Covered
The following products do not currently appear in the Unified Communications Sizing Tool user interface.
Cisco Unified Session Manager

Session Management Edition is currently not supported in the Sizing Tool. While we work on providing Sizing Tool
Support, please contact your Cisco Account Team for Session Management Edition design, sizing, and pricing help.

Cisco Account teams can access the following Cisco internal links for Session Management Edition design help until the
Sizing Tool has full support for Session Management Edition.

Session Management Edition Design Home Page (login required)

Session Management Edition Initial Design Review (login required)

Session Management Edition Design Review Process (login required)

Session Management Edition design guidance can also found in the Cisco Unified Communications System 8.x SRND.
Cisco MediaSense

For design information on using Cisco MediaSense on VM Servers, see Virtualization for Cisco MediaSense.
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
45
C97-418641-00
© 2007 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
46