| |
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| Introduction | |
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| Identifying Issues in a Multisite Deployment | |
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| Multisite Deployment Challenge Overview | |
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| Quality Challenges | |
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| Bandwidth Challenges | |
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| Availability Challenges | |
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| Dial Plan Challenges | |
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| Overlapping and Nonconsecutive Numbers | |
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| Fixed Versus Variable-Length Numbering Plans | |
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| Variable-Length Numbering, E.164 Addressing, and DID | |
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| Detection of End of Dialing in Variable-Length Numbering Plans | |
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| Optimized Call Routing and PSTN Backup | |
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| Various PSTN Requirements | |
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| Issues Caused by Different PSTN Dialing | |
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| Dial Plan Scalability Issues | |
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| NAT and Security Issues | |
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| Summary | |
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| References | |
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| Review Questions | |
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| Identifying Multisite Deployment Solutions | |
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| Multisite Deployment Solution Overview | |
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| Quality of Service | |
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| QoS Advantages | |
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| Solutions to Bandwidth Limitations | |
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| Low-Bandwidth Codecs and RTP-Header Compression | |
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| Codec Configuration in CUCM | |
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| Disabled Annunciator | |
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| Local Versus Remote Conference Bridges | |
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| Transcoders | |
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| Mixed Conference Bridge | |
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| Multicast MOH from the Branch Router Flash | |
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| Preventing Too Many Calls by CAC | |
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| Availability | |
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| PSTN Backup | |
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| MGCP Fallback | |
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| Fallback for IP Phones | |
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| Using CFUR to Reach Remote Site Cisco IP Phones During WAN Failure | |
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| Using CFUR to Reach Users of Unregistered Software IP Phones on Their Cell Phones | |
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| AAR and CFNB | |
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| Mobility Solutions | |
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| Dial Plan Solutions | |
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| Dial Plan Components in Multisite Deployments | |
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| Globalized Call-Routing Overview | |
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| Globalized Call Routing: Three Phases | |
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| Globalized Call Routing Advantages | |
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| NAT and Security Solutions | |
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| CUBE in Flow-Through Mode | |
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| Summary | |
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| References | |
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| Review Questions | |
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| Implementing Multisite Connections | |
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| Examining Multisite Connection Options | |
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| CUCM Connection Options Overview | |
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| Cisco IOS Gateway Protocol Functions Review | |
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| Cisco IOS Gateway Protocol Comparison Review | |
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| SIP Trunk Characteristics | |
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| H.323 Trunk Overview | |
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| MGCP Gateway Implementation Review | |
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| Cisco IOS Gateway MGCP Configuration Methods Review | |
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| Configuring Cisco IOS Gateway for MGCP: Example | |
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| H.323 Gateway Implementation | |
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| Cisco IOS H.323 Gateway Configuration | |
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| CUCM H.323 Gateway Configuration | |
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| Trunk Implementation Overview | |
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| Gatekeeper-Controlled ICT and H.225 Trunk Configuration | |
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| Trunk Types Used by Special Applications | |
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| Implementing SIP Trunks | |
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| Implementing Intercluster and H.225 Trunks | |
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| CUCM Gatekeeper-Controlled ICT and H.225 Trunk Configuration | |
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| Summary | |
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| References | |
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| Review Questions | |
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| Implementing a Dial Plan for International Multisite Deployments | |
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| Multisite Dial Plan Overview | |
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| Dial Plan Requirements for Multisite Deployments with Distributed Call Processing | |
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| Dial Plan Scalability Solutions | |
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| Implementing Site Codes for On-Net Calls | |
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| Digit-Manipulation Requirements When Using Access and Site Codes | |
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| Access and Site Code Requirements for Centralized Call-Processing Deployments | |
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| Implementing PSTN Access in Cisco IOS Gateways | |
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| Transformation of Incoming Calls Using ISDN TON | |
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| Implementing Selective PSTN Breakout | |
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| Configuring IP Phones to Use Local PSTN Gateway | |
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| Implementing PSTN Backup for On-Net Intersite Calls | |
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| Digit-Manipulation Requirements for PSTN Backup of On-Net Intersite Calls | |
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| Implementing TEHO | |
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| TEHO Example Without Local Route Groups | |
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| TEHO Example with Local Route Groups | |
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| Implementing Globalized Call Routing | |
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| Globalized Call Routing: Number Formats | |
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| Normalization of Localized Call Ingress on Gateways | |
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| Normalization of Localized Call Ingress from Phones | |
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| Localized Call Egress at Gateways | |
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| Localized Call Egress at Phones | |
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| Globalized Call-Routing Example: Emergency Dialing | |
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| Considering Globalized Call-Routing Interdependencies | |
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| Globalized Call Routing TEHO Advantages | |
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| Globalized Call Routing TEHO Example | |
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| Summary | |
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| References | |
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| Review Questions | |
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| Examining Remote-Site Redundancy Options | |
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| Remote-Site Redundancy Overview | |
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| Remote-Site Redundancy Technologies | |
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| MGCP Fallback Usage | |
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| Basic Cisco Unified SRST Usage | |
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| Cisco Unified SIP SRST Usage | |
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| CUCME in SRST Mode Usage | |
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| Cisco Unified SRST Operation | |
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| SRST Function of Switchover Signaling | |
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| SRST Function of the Call Flow After Switchover | |
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| SRST Function of Switchback | |
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| SRST Timing | |
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| MGCP Fallback Operation | |
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| MGCP Gateway Fallback During Switchover | |
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| MGCP Gateway Fallback During Switchback | |
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| MGCP Gateway Fallback Process | |
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| Cisco Unified SRST Versions and Feature Support | |
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| SRST 4.0 Platform Density | |
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| Plus (+) Prefix and E.164 Support in Cisco Unified SRST | |
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| Support for Multiple MOH Sources | |
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| Dial Plan Requirements for MGCP Fallback and SRST Scenarios | |
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| Ensuring Connectivity for Remote Sites | |
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| Ensuring Connectivity from the Main Site Using Call Forward Unregistered | |
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| CFUR Considerations | |
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| CFUR Interaction with Globalized Call Routing | |
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| CFUR Example Without Globalized Call Routing | |
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| CFUR Example with Globalized Call Routing | |
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| Keeping Calling Privileges Active in SRST Mode | |
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| SRST Dial Plan Example | |
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| Summary | |
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| References | |
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| Review Questions | |
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| Implementing Cisco Unified SRST and MGCP Fallback | |
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| MGCP Fallback and SRST Configuration | |
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| Configuration Requirements for MGCP Fallback and Cisco Unified SRST | |
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| Cisco Unified SRST Configuration in CUCM | |
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| SRST Reference Definition | |
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| CUCM Device Pool | |
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| SRST Configuration on the Cisco IOS Gateway | |
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| SRST Activation Commands | |
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| SRST Phone Definition Commands | |
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| SRST Performance Commands | |
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| Cisco Unified SRST Configuration Example | |
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| MGCP-Gateway-Fallback Configuration on the Cisco IOS Gateway | |
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| MGCP Fallback Activation Commands | |
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| MGCP Fallback Configuration Example | |
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| Dial Plan Configuration for SRST Support in CUCM | |
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| SRST Dial Plan of CFUR and CSS | |
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| SRST Dial Plan: Max Forward UnRegistered Hops to DN | |
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| MGCP Fallback and SRST Dial Plan Configuration in the Cisco IOS Gateway | |
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| SRST Dial Plan Components for Normal Mode Analogy | |
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| Cisco Unified SRST Dial Plan Dial Peer Commands | |
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| SRST Dial Plan Commands: Open Numbering Plans | |
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| SRST Dial Plan Voice Translation-Profile Commands for Digit Manipulation | |
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| SRST Dial Plan Voice Translation-Rule Commands for Number Modification | |
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| SRST Dial Plan Profile Activation Commands for Number Modification | |
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| SRST Dial Plan Class of Restriction Commands | |
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| SRST Dial Plan Example | |
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| Summary | |
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| References | |
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| Review Questions | |
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| Implementing Cisco Unified Communications Manager Express (CUCME) in SRST Mode | |
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| CUCME Overview | |
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| CUCME in SRST Mode | |
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| Standalone CUCME Versus CUCM and CUCME in SRST Mode | |
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| CUCME Features | |
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| CUCME Features | |
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| Other CUCME Features | |
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| General Configuration of CUCME | |
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| CUCME Basic Configuration | |
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| CUCME Configuration Providing Phone Loads | |
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| CUCME Configuration for Music On Hold | |
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| Additional MOH Sources | |
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| Configuring CUCME in SRST Mode | |
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| Phone-Provisioning Options | |
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| Advantages of CUCME SRST | |
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| Phone Registration Process | |
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| Configuring CUCME for SRST | |
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| CUCME for SRST Mode Configuration | |
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| Summary | |
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| Reference | |
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| Review Questions | |
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| Implementing Bandwidth Management | |
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| Bandwidth Management Overview | |
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| CUCM Codec Configuration | |
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| Review of CUCM Codecs | |
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| Local Conference Bridge Implementation | |
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| Transcoder Implementation | |
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| Implementing a Transcoder at the Main Site | |
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| Configuration Procedure for Implementing Transcoders | |
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| Step 1: Add a Transcoder Resource in CUCM | |
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| Step 2: Configure the Transcoder Resource in Cisco IOS Software | |
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| Multicast MOH from Remote Site Router Flash Implementation | |
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| Multicast MOH from Remote Site Router Flash Region Considerations | |
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| Multicast MOH from Remote Site Router Flash Address and Port Considerations | |
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| Multicast MOH: Address and Port Increment Example | |
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| Implementing Multicast MOH from Remote Site Router Flash | |
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| Configuration Procedure for Implementing Multicast MOH from the Remote Site Router Flash | |
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| Step 1: Enable Multicast Routing on Cisco IOS Routers | |
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| Step 2a: Configure MOH Audio Sources for Multicast MOH | |
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| Step 2b: Configure Multicast MOH in CUCM | |
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| Step 2c: Enabling Multicast MOH at the Media Resource Groups | |
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| Step 3: Enable Multicast MOH from Branch Router Flash at the Branch Router | |
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| Step 4a: Configure the Maximum Hops to Be Used for MOH RTP Packets | |
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| Step 4b: Use an IP ACL at the IP WAN Router Interface | |
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| Step 4c: Disable Multicast Routing on the IP WAN Router Interface | |
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| Summary | |
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| Reference | |
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| Review Questions | |
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| Implementing Call Admission Control | |
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| CAC Overview | |
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| CAC in CUCM | |
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| Standard Locations | |
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| Locations: Hub-and-Spoke Topology | |
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| Locations: Full-Mesh Topology | |
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| Configuration Procedure for Implementing Locations-Based CAC | |
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| Locations Configuration Example of a Hub-and-Spoke Topology | |
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| Step 1: Configure Locations | |
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| Step 2: Assign Locations to Devices | |
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| RSVP-Enabled Locations | |
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| Three Call Legs with RSVP-Enabled Locations | |
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| Characteristics of Phone-to-RSVP Agent Call Legs | |
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| Characteristics of RSVP Agent-to-RSVP Agent Call Legs | |
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| RSVP Basic Operation | |
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| RSVP-Enabled Location Configuration | |
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| Configuration Procedure for Implementing RSVP-Enabled Locations-Based CAC | |
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| Step 1: Configure RSVP Service Parameters | |
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| Step 2: Configure RSVP Agents in Cisco IOS Software | |
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| Step 3: Add RSVP Agents to CUCM | |
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| Step 4: Enable RSVP Between Location Pairs | |
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| Automated Alternate Routing | |
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| AAR Characteristics | |
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| AAR Example Without Local Route Groups and Globalized Numbers | |
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| AAR Example with Local Route Groups and Globalized Numbers | |
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| AAR Considerations | |
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| AAR Configuration Procedure | |
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| Step 1: Configure AAR Service Parameters | |
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| Step 2: Configure Partitions and CSSs | |
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| Step 3: Configure AAR Groups | |
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| Step 4: Configure Phones for AAR | |
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| SIP Preconditions | |
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| CAC Without SIP Preconditions | |
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| CAC with SIP Preconditions | |
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| SIP Preconditions Operation | |
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| SIP Preconditions Call Flow Summary | |
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| Fallback from End-to-End RSVP to Local RSVP | |
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| SIP Preconditions Configuration Procedure | |
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| Step 2a: Configure SIP Profile | |
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| Step 2b: Apply SIP Profile to Trunk | |
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| H.323 Gatekeeper CAC | |
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| H.323 Gatekeeper Used for Call Routing for Address Resolution Only | |
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| Using an H.323 Gatekeeper for CAC | |
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| H.323 Gatekeeper Also Used for CAC | |
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| Provide PSTN Backup for Calls Rejected by CAC | |
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| Configuration Procedure for Implementing H.323 Gatekeeper-Controlled Trunks with CAC | |
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| Summary | |
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| References | |
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| Review Questions | |
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| Implementing Device Mobility | |
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| Issues with Devices Roaming Between Sites | |
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| Issues with Roaming Devices | |
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| Device Mobility Solves Issues of Roaming Devices | |
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| Device Mobility Overview | |
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| Dynamic Device Mobility Phone Configuration Parameters | |
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| Device Mobility Dynamic Configuration by Location-Dependent Device Pools | |
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| Device Mobility Configuration Elements | |
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| Relationship Between Device Mobility Configuration Elements | |
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| Device Mobility Operation | |
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| Device Mobility Operation Flowchart | |
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| Device Mobility Considerations | |
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| Review of Line and Device CSSs | |
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| Device Mobility and CSSs | |
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| Examples of Different Call-Routing Paths Based on Device Mobility Groups and Tail-End Hop-Off | |
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| Device Mobility Interaction with Globalized Call Routing | |
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| Advantages of Using Local Route Groups and Globalized Call Routing | |
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| Example of No Globalized Call Routing with a Different Device Mobility Group | |
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| Example of No Globalized Call Routing with the Same Device Mobility Group | |
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| Globalized Call Routing Example | |
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| Device Mobility Configuration | |
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| Steps 1 and 2: Configure Physical Locations and Device Mobility Groups | |
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| Step 3: Configure Device Pools | |
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| Step 4: Configure Device Mobility Infos | |
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| Step 5a: Set the Device Mobility Mode CCM Service Parameter | |
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| Step 5b: Set the Device Mobility Mode for Individual Phones | |
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| Summary | |
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| References | |
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| Review Questions | |
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| Implementing Extension Mobility | |
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| Issues with Users Roaming Between Sites | |
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| Issues with Roaming Users | |
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| Extension Mobility Solves Issues of Roaming Users | |
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| CUCM Extension Mobility Overview | |
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| Extension Mobility: Dynamic Phone Configuration Parameters | |
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| Extension Mobility with Dynamic Phone Configuration by Device Profiles | |
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| CUCM Extension Mobility Configuration Elements | |
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| Relationship Between Extension Mobility Configuration Elements | |
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| CUCM Extension Mobility Operation | |
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| Issues in Environments with Different Phone Models | |
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| Default Device Profile and Feature Safe | |
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| How Cisco Extension Mobility Handles Phone Model Differences | |
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| Cisco Extension Mobility and CSSs | |
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| Alternatives for Mismatching Phone Models and CSS Implementations | |
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| CUCM Extension Mobility Configuration | |
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| Step 1: Activate the Cisco Extension Mobility Feature Service | |
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| Step 2: Set Cisco Extension Mobility Service Parameters | |
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| Step 3: Add the Cisco Extension Mobility Phone Service | |
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| Step 4: Create Default Device Profiles | |
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| Step 5a: Create Device Profiles | |
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| Step 5b: Subscribe the Device Profile to the Extension Mobility Phone Service | |
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| Step 6: Associate Users with Device Profiles | |
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| Step 7a: Configure Phones for Cisco Extension Mobility | |
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| Step 7b: Subscribe the Phone to the Extension Mobility Phone Service | |
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| Summary | |
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| References | |
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| Review Questions | |
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| Implementing Service Advertisement Framework (SAF) and Call Control Discovery (CCD) | |
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| SAF and CCD Overview | |
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| Dial Plan Scalability Issues in Large Networks | |
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| Scalable Dial Plan Solution for Large Networks | |
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| CCD Overview | |
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| SAF Characteristics | |
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| SAF Client Types | |
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| SAF Message Components | |
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| SAF Routing Characteristics | |
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| SAF Neighbor Relationships | |
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| SAF Client and SAF Forwarder Functions | |
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| CCD Characteristics | |
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| CCD Services in CUCM | |
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| Processing Received Routes in CUCM | |
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| CCD Operation | |
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| CCD Propagation of HQ Routes | |
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| CCD Propagation of BR Routes | |
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| CCD Call from HQ to BR | |
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| CCD with a Link Failure at BR | |
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| CCD for Call from HQ to BR During Link Failure | |
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| SAF and CCD Implementation | |
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| External SAF Client Configuration Elements | |
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| Internal SAF Client Configuration Elements | |
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| SAF Forwarder Configuration Procedure | |
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| External SAF Client Configuration Procedure | |
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| Step 1: Configure SAF Security Profile | |
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| Step 2: Configure SAF Forwarder | |
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| Step 3: Configure SAF-Enabled SIP Trunk | |
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| Step 4: Configure Hosted DN Group | |
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| Step 5: Configure Hosted DN Pattern | |
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| Step 6: Configure CCD Advertising Service | |
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| Step 7: Configure CCD Requesting Service and Partition | |
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| Step 8: Configure CCD Blocked Learned Patterns | |
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| Step 9: Configure CCD Feature Parameters | |
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| Internal SAF Client Configuration Procedure | |
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| Step 1: Configure Trunk Profile | |
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| Step 2: Configure Directory-Number Blocks | |
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| Step 3: Configure Call-Control Profile | |
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| Step 4: Configure Advertising Service | |
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| Step 5: Configure Requesting Service | |
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| Step 6: Configure VoIP Dial Peer | |
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| CCD Considerations | |
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| Monitoring Learned Routes from CUCM in RTMT | |
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| Monitoring Learned Routes in CUCME | |
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| CCD PSTN Backup CSS | |
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| SRST Considerations | |
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| CCD and Static Routing Integration Considerations | |
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| Cisco IOS SAF Client Considerations When Using Globalized Call Routing | |
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| Solution for PSTN Backup Advertised in E.164 Format Without Leading + | |
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| TEHO Considerations | |
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| Trunk Considerations When Using Globalized Call Routing | |
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| CUCM Clusters and CCD Configuration Modes | |
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| Other SAF and CCD Considerations | |
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| Summary | |
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| References | |
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| Review Questions | |
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| Answers Appendix | |
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| TOC, 9781587142536, 7/12/2011 | |