CICD – Ch2 – Unified Collaboration

Unified Collaboration

• More than just VOIP
• Bring all collaboration into a seamless framework
  • Includes: voice, video and data
• CICD covers core solutions
  • CME – Communications Manager Express
  • CUCM – Cisco Unified Communications Manager
  • CUC – Cisco Unity Connection
  • CUIMP – Cisco Unified IM and presences
• There are more outside of this exam
  • Contact Center
  • WebEx
  • Telepresence
  • Spark

Communications Manager Express

• Runs IP telephony on an ISR (integrated services router)
• ISR can terminate analog and digital circuits
  • FXO, FXS, T1
    • FXO – Office, connects to POTS circuits
    • FXS – Station, connects to endpoints, analog phones, fax, modem
  • Supports VOIP endpoints
  • Features: conference calls, video, automatic call distribution
• Platform dependent on number of supported phones
  • ISR4451, can handle 450 phones
• All in one device for controlling phones and trunking to PSTN

CME Features

• Call processing and device control
• CLI or GUI based configuration
• Local directory service
• Computer Telephony Integration (CTI)
  • Control a device remotely. Example, have jabber make calls using your desk phone
• Trunk to other voice systems
• Integration with Unity Express
  • Runs on modules installed in router
  • Provides voicemail features

CME and IP Phones

• CME controls virtually every action performed on phone
• SCCP (skinny) or SIP used for signaling protocols to allow CME to communicate and control the phone
• CME instructs phones where to connect, establish calls
  • Not involved in the RTP stream of traffic
  • CME is not required after a call has been setup
  • Exception: If call is going to PSTN that is attached to the CME router

CUCM

• Linux based, VMware guest
• Provides core device control, call routing, permissions, features, connectivity to outside applications
• GUI based administration

CUCM Key Features

• Full audio and video support
• Appliance based operation
• VMware install, on supported hardware
• Redundant server cluster
  • Single CUCM cluster can handle 40000 phones running SIP or SCCP
  • Megacluster can handle 80000 phones
• Intercluster trunk and Voice Gateway control
• Built in disaster recovery
  • Done through sFTP
• Directory service support and integration
  • Built-in or LDAP
• Database replication
  • Publisher replicates read-only database to subscribers in the cluster
• Run Time Data
  • Intercluster communication signaling (ICCS)
  • All servers in cluster form TCP connectionn for ICCS over TCP ports 8002-8004
  • Assuming 10,000 busy hour calls = 1.5Mbps per server
• Changes to database are performed on Publisher
• Standard cluster supports single publisher and 19 subscribers
  • 8 for call processing
• 11 other subscribers can be TFTP, conference bridge, MOH, annunciater
• TFTP is critical for phone and gateway operations
  • Bulk of config is downloaded from TFTP
• Best practice is to pull publisher out of all call processing and let subscribers do the work
• Phones can list 3 redundant CUCM servers for failover purposes

Unity Connection

• Make any message retrievable from any voice enabled device or application
• Supports 20000 voicemail boxes
• Runs as VMware guest
• Active / Active setup, publisher, subscriber
• Features
  • Personal call transfer rules, speech recognition

Unity Connection Key Features

• Appliance based
• 20k mailboxes per server (cluster?)
• Access voicemail from anywhere
• LDAP integration
• Microsoft Exchange support
• Voicemail Profile for Internet Mail (VPIM)
  • Integration of voicemail services from difference vendors
• Active / active high availability
  • Publisher / subscriber cluster
  • Both accept client requests
• CUCM + CUC communicate using SCCP or SIP

IM and Presence – IMP

• Jabber client
• Shows full presence status
• Enterprise instant messaging
  • Jabber, Extensible Communication Platform (XCP)
  • Industry standard, works with different IM clients
• Message compliance
  • Logging
  • Encryption with TLS
• Interdomain federation
  • Connects to other domains outside of your business
  • Business to business communication
• Secure Messaging
  • TLS, IPSec
• Jabber XCP extensibility
  • File sharing, app sharing, video conferencing
• IMP integrated with CUCM supports 45000 users
• IMP, IM only – 75000 users
  • No integration with CUCM

Jabber

• IM Client: peer to peer client, multiuser chat, persistent chat
• LDAP integration
• Integrated with CUCM, able to see On/Off hook status
• Start voice and video calls (HD)
• Soft phone
• CTI support, control desk phone from jabber client

Video Communication Server (VCS) + Telepresence Management Suite (TMS)

• Call types
  • Internal desktop calls
    • Between 2 endpoints with camera
    • Registered to CUCM
  • Telepresence Calls
    • Using TP endpoints
  • External Video Calls
    • Business to business

VCS Control

• Self contained video endpoint call control system for customers without CUCM

VCS Expressway

• 2 servers – communicate as a trusted relationship
  • Core – inside firewall
  • Edge – deployed in DMZ
  • Perform firewall traversal
  • Allows callers to signal CUCM to setup video call with endpoints registered to CUCM

TMS – TP Management Suite

• Manages scheduling of TP Meetings
• For administrators
  • Provisioning tool to deploy TP endpoints across multiple locations within organization
  • Central admin of all TP infrastructure resources
  • Real time management of all conferences
  • Phone book sync
  • Reporting
• For users
  • Ease of scheduling
    • Outlook / exchange integration
    • one button to push
  • Contact – phone book from multiple sources