Intro to Cisco IP Telephony Solutions

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Intro to Cisco IP Telephony Solutions

• By Prof. Yousif
• _at_
• Valencia Community College

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Introduce yourselves...
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Let us get acquainted!

• What is your name and how would you like us to
  address you?
• Is this your first networking/telephony class?
• Are you taking any other networking/telephony
  classes?
• What is your background in networking/Telephony?
• Are you a career changer?
• Why did you sign up for this class and what are
  your expectations?
• What is your next step in technical training and
  industry certification after finishing this
  class?
• Interests, Academic Goals, and Industry
  Certifications

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What is IP Telephony

• General term for the technologies that use the
  Internet Protocol's packet-switched connections
  to exchange voice, fax, and other forms of
  information that have traditionally been carried
  over the dedicated circuit-switched connections
  of the public switched telephone network (PSTN).
  www.whichvoip.com/voip/voip_dictionary.htm
• The transmission of voice and fax phone calls
  over data networks that uses the Internet
  Protocol (IP). IP telephony is the result of the
  transformation of the circuit-switched telephone
  network to a packet-based network that deploys
  voice-compression algorithms and flexible and
  sophisticated transmission techniques, and
  delivers richer services using only a fraction of
  traditional digital telephony's usual
  bandwidth.www.voip-architecture.com/glossary/glos
  sary.html

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What is IP Telephony

• IP telephony combines different types of
  communications-such as data, voice, and
  video-over a single packet cell-based
  infrastructure. IP telephony extends the value of
  the network with these nontraditional
  applications. By combining different types of
  traffic on a single network connection, small and
  medium-sized businesses and small branch offices
  can dramatically reduce the costs of their voice
  and data networks. www.spacespin.com/glossary.html
  
• Circuit-Switched VS. Packet Switched networks

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IPT Applications

• An IPT solution offers the option to implement
  XML applications to users phones. These
  applications can be customized to an
  organizations specific needs. A popular
  application, Unified Messaging, will allow users
  to retrieve their voicemails via email as well as
  the reverse emails read to you while checking
  voicemail. This provides users flexibility
  regarding message retrieval resulting in improved
  communications and ultimately better care for
  customers.
• Another Example http//www.phonetop.com/phonetop
  3.nsf/20040310
• IPT Applications Videos

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Key Benefits of VoIP

• Elimination of expensive leased lines, PBXs and
  PBX lines and PSTN lines with recurring monthly
  costs
• Ease of adds, moves and changes. 
• Elimination of costly tie lines between multiple
  PBXs  
• Reduction of supported PBXs resulting in the
  reduction of annual maintenance and support
  contracts  
• Reduction of costly long distance charges between
  branch offices via toll-bypass sending
  voice traffic over the existing data network

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The different Implementation of VoIP
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Considerations for End-to-End VoIP Solutions
Directory Services, Web Content, and Unified
Messaging Using Clustering to ensure the
availability of resources to handle call
processing Ensuring quality and reliability of
the voice network
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CIPT Design Objectives
PSTN is available in the case of the IPWAN going
down or becoming congested
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Cisco IPT Components
CCM is the software-based IP call Processing
Engine
Digital Gateway Voice T1 to connect legacy
PBXs. Analog Gateways Connect legacy analog
telephony equipment such as analog phones and
faxes
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Cisco AVVID Architecture
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Cisco IP Phones
Cisco IP Phone Documentation
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Cisco IP Phone 7970

• IPT Applications Videos

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2600 Gateways
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Switches
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Lab1

• Physical Connections and Lab Setup

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Cisco Call Manager
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The System Menu

• Server Specify the IP address of the server
• Cisco CallManager Set propertied for
  CallMangers in the same cluster share the same
  database. Example port numbers
• Cisco CallManager group Each group can have up
  to three CallMangers. One serves as the primary
  and the other members of the group serve as
  backups
• Date/Time group Define time Zones for different
  devices.
• Device Defaults Default characteristics for
  each type of device within a call manager
  cluster.
• Region Used to specify the voice codec used for
  calls within a region and between regions. The
  voice codec is used to determine the maximum
  amount of bandwidth used per call
• Device pools Used to apply common
  characteristics for a group of devices
• Enterprise Parameters Settings that apply to
  all devices and services within the same cluster.
  That is where a newly installed CallManager
  gets the initial configuration values from.
• Location Locations used to implement call
  admission control in a centralized call
  processing system. Call admission control is
  used to regulate voice quality by limiting the
  amount of bandwidth available for calls over
  links between locations.

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The Route Plan Menu

• Partition A list of route Patterns
• Calling Search space Ordered list of route
  partitions
• Route Filter Route filters, along with route
  patterns, use dialed digits string to determine
  how a call is processed
• Route Group A list of ordered gateways
• Route List Assigns a set of route groups to a
  route pattern and determines the order in which
  the route groups are accessed.
• Route Pattern A route pattern is a string of
  digits or an address and set of associated digit
  manipulations that can be assigned to a route
  list. Route patterns are used in conjunction
  with route lists and route filters to direct
  calls to a specific gateway and perform digit
  manipulation (include, exclude or modify specific
  digits).
• Translation Patterns Use to manipulate dialed
  digits before routing a call. Used to configure
  Private Line Automatic Ring Down (PLAR)
• External Route Plan Wizard An easy way to
  configure external routing to PSTN, to PBXs, or
  to other CCMs.
• Route Plan Report Lists all route patterns,
  translation patterns, conference numbers, call
  pick up numbers, and call park numbers.

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The Service Menu

• Used to configure CCM to interface with voice
  mail servers.
• Used to configure CCM to interface with
  conference bridges which allows several
  simultaneous, multi-party conference
• Use to configure CCM to interface with a Media
  termination point (MTP)
• Used to configure transcoders. Transcoders Are
  used to convert from one compression type to
  another (G711, G723, and G.729).
• Used to configure Service Parameters where you
  can add or delete services on the selected server
  (For example TFTP service).
• Used to configure Music on Hold
• Used to configure Media Resource Group MRG is a
  logical group of transcoders MOH servers and
  conference bridges.

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Voice Compression
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Voice Compression Example
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The Feature Menu

• Used to configure features such as
• Call Park Place a call on hold at a specific
  extension. The parked call can be retrieved from
  any phone in the cluster
• Call Pickup Allows you to answer a call that
  comes in on a directory number that is different
  from yours
• Cisco IP Phone Services enables XML
  applications on the phone
• Meet-Me number Multi-user meetings.

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The Device Menu

• Here you can add, delete, or search for devices
  such as Phones, gateways, and gatekeepers

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The User Menu

• Maintaining and displaying CCMs users
• The global directory maintains the associations
  of devices with users.

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The Application Menu

• It is through the application menu that you can
  install plug-ins to extend the functionality of
  the Cisco CallManager. Examples
• Cisco Web Attendant Plug-in Used by a
  receptionist to answer and transfer calls
• JTAPI Plug-In Allows computers to host
  applications that can access CallManger via Java
  Telephony Application Programming Interface

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The Help Menu

• Page sensitive help is available. If you need
  help on a particular page, you will be linked to
  the online help page that corresponds to the
  displayed page.

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Context and Index Help

• CCM Administration Guide Step-by-Step
  instructions to configure main menu items and
  submenus.
• CCM System Guide Information on Cisco IP
  Telephony solutions, CIPT components, and CCM
  Clusters.
• The CCM Serviceability Used in monitoring and
  troubleshooting CIPT.

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Lab 2

• Network Configurations