IMPLEMENTING CISCO VOICE COMMUNICATIONS AND QOS Volume 1

Transcription

1 IMPLEMENTING CISCO VOICE COMMUNICATIONS AND QOS Volume 1 Course Introduction Overview Learner Skills and Knowledge Course Goal and Course Flow Additional References Cisco Glossary of Terms Your Training Curriculum Introduction to Voice Gateways Overview Module Understanding Cisco Unified Communications Networks and the Role of Gateways Cisco Unified Communications Cisco Unified Communications Overview Cisco Unified Communications Architecture Cisco Unified Communication Business Benefits Cisco Unified Communications Gateways Gateway Functionality VoIP Signaling Protocols Gateway Deployment Example Gateways in Cisco Unified Communications Deployment Models Single Site Deployment Multisite WAN with Centralized Call Processing Multisite WAN with Distributed Call Processing Clustering over the IP WAN Gateway Hardware Platforms Gateway Operational Modes Voice Gateway Call Legs Voice Switching Gateway VoIP Gateway Cisco Unified Border Element References Examining Gateway Call Routing and Call Legs Gateway Call Routing Components Most Prevalent Dial Peer Types Dial Peers

2 VoIP Dial Peers VoIP Dial Peer Examples End to End Call Routing Call Routing Call Legs Configuring POTS Dial Peers Dial Peer Matching String Matching Characters Number Matching Characters Matching Inbound Dial Peers Matching Outbound Dial Peers Default Dial Peer Direct Inward Dialing Two Stage Dialing One Stage Dialing Configuring Gateway Voice Ports Voice Ports Overview Voice Trunk Example Installing Voice Ports Analog Voice Ports Analog Signaling Overview Analog Signaling Address Signaling DTMF Call Progress Tones Configuring Analog Voice Ports Configuring FXS Voice Ports Configuring FXO Voice Ports Configuring FXS DID Voice Ports Configuring E&M Voice Ports Configuring CAMA Voice Ports Digital Voice Ports Digital Circuit Types T1 CAS Overview T1 CAS SF Format T1 CAS ESF Format E1 CAS Overview E1 CAS Multiframe Format Understanding ISDN ISDN BRI and PRI Interfaces ISDN Architecture Non Facility Associated Signaling Configuring Digital Voice Ports

3 Configuring Digital Ports Configuring ISDN ISDN BRI Configuration ISDN E1 PRI Configuration Fine Tuning Analog and Digital Voice Ports Fine Tuning Analog Voice Ports Echo Cancellation Talker Echo Listener Echo Echo Cancellation Echo Canceller Parameters Configuring Echo Cancellation Verifying Analog and Digital Voice Ports show voice port summary Command Verifying Analog Voice Ports Verifying Voice Ports Understanding DSP Functionality, Codecs, and Codec Complexity Voice Codecs Voice Codec Packet Rates and Payload Sizes Evaluating Quality of Codecs Mean Opinion Score Perceptual Evaluation of Speech Quality Perceptual Evaluation of Audio Quality Codec Quality Evaluating Overhead Per Call Bandwidth Using Common Codecs Digital Signal Processors DSP Modules DSP Module Comparison Codec Complexity Packet Voice DSP Module Conferencing DSP Calculator Configuring DSPs Configuring DSP Services for Voice Termination Codec Complexity Configuration Configuring DSP Resources for Transcoding, Conferencing, and MTP Transcoding and Conferencing Example Verifying DSPs References Module References

4 Module Self Check Module Self Check Answer Key VoIP Call Legs Overview Module Examining VoIP Call Legs and VoIP Media Transmission VoIP Overview Major Stages of Voice Processing in VoIP VoIP Components Converting Voice to VoIP Sampling Quantization Encoding Compression VoIP Packetization Packetization Rate Codec Operations Packetization and Compression G.729 Example VoIP Media Transmission Real Time Transport Protocol Real Time Transport Control Protocol Compressed RTP Secure RTP Secure RTP Packet Format VoIP Media Considerations Voice Activity Detection Bandwidth Savings Voice Port Settings for VAD Explaining H.323 Signaling Protocol H.323 Architecture H.323 Advantages H.323 Network Components H.323 Gateways H.323 Gatekeepers H.323 Multipoint Control Units H.323 Multipoint Conferences H.323 Regional Requirements Example

5 H.323 Call Flows H.323 Slow Start Call Setup H.323 Slow Start Call Teardown H.323 RAS Call Setup H.225 RAS Call Teardown Codecs in H.323 Negotiation in Slow Start Call Setup H.323 Fast Connect H.323 Early Media Configuring H.323 Gateways H.323 Gateway Configuration Example Customizing H.323 Gateways H.323 Session Transport Idle Connection and H.323 Source IP Address H.225 Timers H.323 Gateway Tuning Example Verifying H.323 Gateways Explaining SIP Signaling Protocol SIP Architecture Signaling and Deployment SIP Architecture Components SIP Servers SIP Architecture Examples SIP Call Flows SIP Call Setup Using Proxy Server SIP Call Setup Using Redirect Server SIP Addressing Address Registration Address Resolution Codecs in SIP SDP Examples Delayed Offer Early Offer Early Media Configuring Basic SIP User Agent Configuration Dial Peer Configuration Basic SIP Configuration Example Configuring SIP ISDN Support Calling Name Display Calling Name Display Commands

6 Calling Name Display Configuration Blocking and Substituting Caller ID Blocking and Substituting Caller ID Commands Blocking and Substituting Caller ID Configuration Configuring SIP SRTP Support SIPS Global and Dial Peer Commands SRTP Global and Dial Peer Commands SIPS and SRTP Configuration Example Customizing SIP Gateways SIP Transport SIP Source IP Address and UA Timers SIP UA Timers SIP Early Media Gateway to Gateway Configuration Example UA Example Verifying SIP Gateways SIP UA General Verification SIP UA Registration Status SIP UA Call Information SIP Debugging Overview Examining the INVITE Message Examining the 200 OK Message Examining the BYE Message Explaining MGCP Signaling Protocol MGCP Architecture MGCP Key Features MGCP Components MGCP Gateways MGCP Endpoints MGCP Package Types MGCP Call Flows Residential Gateway to Residential Gateway Trunking Gateway to Trunking Gateway MGCP Special Considerations Codec Negotiation (Residential Gateway to Residential Gateway Example) Digit Collection Configuring MGCP Gateways MGCP Commands Customizing MGCP Gateways Package Configuration Selected Package Types Residential Gateway Example

7 Trunking Gateway Example Verifying MGCP Gateways show mgcp Command show ccm manager Command show mgcp endpoint Command show mgcp statistics Command Describing Requirements for VoIP Call Legs Audio Clarity Delay Delay Types Acceptable Delay (G. 114) Jitter Packet Loss Bandwidth Requirements QoS Requirements QoS Transporting Modulated Data over IP Networks Differences from Fax Transmission in the PSTN Fax Services over IP Networks Understanding FAX/Modem Pass Through, Relay, and Store and Forward Pass Through Topology Pass Through Relay Topology Relay Store and Forward Fax Gateway Signaling Protocols, and Fax and Modem Pass Through and Relay Cisco Fax Relay T.38 Fax Relay DTMF Support DTMF Support Configuring VoIP Call Legs Configuration Components of VoIP Dial Peer VoIP Dial Peer Characteristics Configuring DTMF Relay DTMF Relay Configuration Example Configuring FAX/Modem Support T.38 Fax Relay Configuration Fax Relay Speed Configuration Fax Relay SG3 Support Configuration Fax Support Configuration Example

8 Configuring Modem Support Modem Pass Through and Modem Relay Interaction Modem Support Configuration Example Configuring Codecs Codec Related Dial Peer Configuration Codec Configuration Example Limiting Concurrent Calls Module Module Self Check Module Self Check Answer Key

9 IMPLEMENTING CISCO VOICE COMMUNICATIONS AND QoS Volume 2 Cisco Unified Communications Manager Express Endpoints Implementation Overview Module Introducing Cisco Unified Communications Manager Express Introducing Cisco Unified Communications Manager Express Cisco Unified Communications Manager Express Positioning Cisco Unified Communications Manager Express Deployment Models Cisco Unified Communications Manager Express Key Features and Benefits Phone Features System Features Trunk Features Voice Mail Features Cisco Unified Communications Manager Express Supported Platforms Cisco Integrated Services Routers Scalability Cisco Integrated Services Routers Generation 2 Scalability Memory Requirements Cisco Integrated Services Routers Licensing and Software Cisco Integrated Services Routers Generation 2 Licensing Model Cisco Unified Communications Manager Express Operation Calls Through IP Network Examining Cisco Unified Communications Manager Express Endpoint Requirements Overview of Cisco Unified Communications Manger Express Endpoints Endpoint Signaling Protocols Endpoint Capabilities Basic Cisco Unified IP Phone Models Midrange Cisco Unified IP Phones Upper End Cisco Unified IP Phones Video Enabled Cisco Unified IP Phones Conference Stations Identifying Cisco Unified Communications Manager Express Endpoint Requirements Phone Startup Process Power over Ethernet

10 Two PoE Technologies Cisco Prestandard Device Detection IEEE 802.3af Device Detection Cisco Catalyst Switch: Configuring PoE Cisco Catalyst Switch: Show Inline Power Status VLAN Infrastructure Voice VLAN Support Single VLAN Access Port Multi VLAN Access Port Trunk Port Ethernet Frame Types Generated by Cisco IP Phones Blocking PC VLAN Access at IP Phones Limiting VLANS on Trunk Ports at the Switch Configuring Voice VLAN in Access Ports Using Cisco IOS Software Configuring Trunk Ports Using Cisco IOS Software Verifying Voice VLAN Configuration Using Cisco IOS Software IP Addressing and DHCP DHCP Parameters Router Configuration with 802.1Q Trunk Router Configuration with Cisco EtherSwitch Network Module DHCP Relay Configuration Network Time Protocol NTP Configuration Example Endpoint Firmware and Configuration Downloading Firmware Firmware Images Setting up Cisco Unified Communications Manager Express in SCCP Environment Configuring Source IP Address and Firmware Association Enabling SCCP Endpoints Locale Parameters Date and Time Parameters Parameter Tuning Generating Configuration Files for SCCP Endpoints Cisco Unified Communications Manger Express SCCP Environment Example Setting Up Cisco Unified Communications Manager Express in a SIP Environment Configuring Cisco Unified Communications Manager Express for SIP Configuring Source IP Address and Associating Firmware Enabling SIP Endpoints

11 Locale Parameters Date and Time Parameters NTP and DST Parameters Generating Configuration Files for SIP Endpoints Cisco Unified Communications Manager Express SIP Environment Example Configuring Cisco Unified Communications Manager Express Endpoints Directory Numbers and Phones in Cisco Unified Communications Manager Express Directory Number Types Single and Dual Line Directory Numbers Octo Line Directory Number Nonexclusive Shared Line Directory Number Exclusive Shared Line Directory Number Multiple Directory Numbers with One Telephone Number Multiple Number Directory Number Overlaid Directory Number Creating Directory Numbers for SCCP Phones Single Line Ephone dn Configuration Dual Line Ephone dn Configuration Octo Line Ephone dn Configuration Dual Number Ephone dn Configuration Configuring SCCP Phone Type Templates Configuring SCCP Phone Type Templates Ephone Template for Conference Station 7937G Configuration Example Creating SCCP Phones Configuring SCCP Ephone Type Configuring SCCP Ephone Buttons Configuring Ephone Preferred Codec Basic Ephone Configuration Example Multiple Ephone Configuration Example Multiple Directory Numbers Configuration Example Shared Directory Number Configuration Example Controlling Automatic Registration Partially Automated Endpoint Deployment Partially Automated Deployment Example Creating Directory Numbers for SIP Phones Voice Register Directory Number Configuration Example

12 Creating SIP Phones Configuring SIP Phones Tuning SIP Phones Sharing Directory Number Configuration Example Configuring Cisco IP Communicator Support Configuring Cisco IP Communicator Managing Cisco Unified Communications Manager Express Endpoints Rebooting Commands Verifying Cisco Unified Communications Manager Express Endpoints Verifying Phone VLAN ID Verifying Phone IP Parameters Verifying Phone TFTP Server Verifying Firmware Files Verifying TFTP Operation Verifying Phone Firmware Verifying SCCP Endpoint Registration Verifying SIP Endpoint Registration Verifying SCCP Registration Process Verifying SIP Registration Process Verifying Endpoint Related Dial Peers Module Module Self Check Module Self Check Answer Key Dial Plan Implementation Overview Module Introducing Call Routing Introducing Numbering Plans North American Numbering Plan NANP Numbering Assignments European Telephony Numbering Space Fixed and Variable Length Numbering Plan Comparison E.164 Addressing Scalable Numbering Plans Nonoverlapping Numbering Plan

13 Scalable Nonoverlapping Numbering Plan Considerations Overlapping Numbering Plans Overlapping Numbering Plan Example Scalable Overlapping Numbering Plan Considerations Private and Public Numbering Plan Integration Private and Public Numbering Plan Integration Functions Private and Public Numbering Plan Integration Considerations Number Plan Implementation Overview Private Number Plan Implementation Example Public Number Plan Implementation Call Routing Overview Call Routing Example Understanding Dial Plans Defining Dial Plans Dial Plan Implementation Dial Plan Requirements Endpoint Addressing Endpoint Addressing Considerations Call Routing and Path Selection Path Selection Example PSTN Dial Plan Requirements Inbound PSTN Calls Numbers in Inbound PSTN Calls Outbound PSTN Calls Numbers in Outbound PSTN Calls PSTN Backup ISDN Dial Plan Requirements ISDN Dial Plan Requirements Inbound ISDN Calls Digit Manipulation Calling Privileges Calling Privileges Example Call Coverage Call Coverage Features Describing Digit Manipulation

14 Digit Collection and Consumption Cisco Unified Communications Manager Express Addressing Method User Input on SCCP Phones SCCP Digit Collection SIP Digit Collection (Simple Phones) SIP Digit Collection (Enhanced Phones) Dial Peer Management Digit Consumption Components of Digit Manipulation Digit Manipulation Order Digit Stripping Digit Forwarding Digit Prefixing Simple Digit Manipulation Comparison Number Expansion Basic Digit Manipulation Example Caller ID Digits Manipulation Caller IP Manipulation Example Digit Manipulation Using Voice Translation Rules and Profiles Voice Translation Rules and Profiles Hierarchy Voice Translation Rule Regular Expressions Voice Translation Rule Operations Prepending Digits Voice Translation Rule Search and Replace Examples Assigning Rules to Profiles Translation Profile Processing Order Incoming PSTN Call Example 1 Incoming PSTN Call Example 2 Incoming PSTN Call Blocking Example Digit Manipulation Using dialplan pattern Command Digit Manipulation Using dialplan pattern Command Example 1 Digit Manipulation Using dialplan pattern Command Example 2 Digit Manipulation Using dialplan pattern Command Example 3 Verifying Digit Manipulation Verifying Dial Plan Verifying Translation Rules and Profiles Testing Translation Rules

15 Configuring Path Selection Call Routing and Path Selection Dial Peer Matching Dial Peer Matching Refresher Matching Dial Peer Commands Refresher Outbound Dial Peer Matching Order Best Practices Path Selection Strategies Site Code Dialing and Toll Bypass Site Code Dialing and Toll Bypass Example Site Code Dialing and Toll Bypass with Backup Example Configuring Site Code Dialing and Toll Bypass Step 1: Configure Voice Translation Rules and Profiles for VoIP Intersite Routing Step 2: Define Dial Peers for VoIP Intersite Routing Step 3: Configure Voice Translation Rules and Profiles for PSTN Intersite Routing Step 4: Define Dial Peers for PSTN Intersite Routing Outbound Site Code Dialing Example Inbound Site Code Dialing Example Tail End Hop Off TEHO Scenario Configuring TEHO TEHO Configuration Example Configuring Calling Privileges Calling Privileges Characteristics Dial Peer Granularity Implementing Calling Privileges on Gateways COR Elements COR Logic COR Implementation Example Implementing Calling Privileges on SRST and Cisco Unified Communications Manager Express Calling Privileges Implementation at a Glance Configuring COR Configuring COR

16 Assigning COR Configuring COR Labels and Lists (Steps 1 and 2) Assigning COR Lists to Dial Peers (Step 3) Assigning COR Lists to Endpoints (Step 4) Configuring COR for SRST Verifying COR Verifying COR Names and Lists Verifying Dial Peer COR Settings Verifying SIP Endpoint COR Settings Module Module Self Check Module Self Check Answer Key

17 IMPLEMENTING CISCO VOICE COMMUNICATIONS AND QoS Volume 3 Gatekeeper and Cisco Unified Border Element Implementation Overview Module Understanding Gatekeepers Gatekeeper Overview Gatekeeper Functions Gatekeeper Signaling H.225 RAS Messages Registration Request Lightweight Registration Admission Request Location Request H.225 RAS Intrazone Call Setup H.225 RAS Interzone Call Setup Gatekeeper Call Routing Zones Zone Prefixes Zone Prefixes Technology Prefixes Technology Prefix Usage Gatekeeper Based Call Admission Control Calculating Bandwidth Configuring Gatekeeper Gatekeeper Basics Configuring Gatekeeper Zones Configuring Remote Gatekeeper Zones Gatekeeper Zones Configuration Example Configuring Zone Prefixes Zone Prefix Configuration Example Configuring Technology Prefixes Technology Prefix Configuration Example Adapting H.323 Gateways to Gatekeepers Managing E.164 Address Registration

18 Gateway Configuration Example Configuring Gatekeeper CAC Gatekeeper CAC Configuration Example Verifying Basic Gatekeeper Functionality Verifying Gatekeeper Status Verifying Registered Endpoints Verifying Zone Prefixes Verifying Zone Status Verifying Gatekeeper Calls Examining Cisco Unified Border Element Cisco Unified Border Element Overview Cisco Unified Border Element Placement Cisco Unified Border Element Applications Cisco Unified Border Element Application Examples Protocols Interworking on Cisco Unified Border Element Signaling Method Refresher Cisco Unified Border Element Protocol Interworking Media Flows on Cisco Unified Border Element Media Flows Cisco Unified Border Element Codec Filtering Cisco Unified Border Element Codec Filtering Examples Configuring Media Flow and Transparent Codec Media Flow Around and Transparent Codec Example RSVP Based CAC on Cisco Unified Border Element RSVP Based CAC RSVP Based CAC Call Flow Cisco Unified Border Element Call Flows SIP Carrier Interworking SIP Carrier Interworking Call Flow SIP Carrier Interworking with Gatekeeper Based CAC Call Setup Configuring H.323 to H.323 Interworking Configuring H.323 to H.323 Interworking Configuring H.323 to H.323 Fast Start to Slow Start Interworking H.323 to H.323 Interworking Example Configuring H.323 to SIP Interworking Configuring H.323 to SIP DTMF Relay Interworking

19 Verifying Cisco Unified Border Element Debugging Cisco Unified Border Element Operations Viewing Cisco Unified Border Element Calls Module Module Self Check Module Self Check Answer Key Quality of Service Overview Module Introducing QoS QoS Issues After Converged Networks Quality Issues in Converged Networks Lack of Bandwidth Managing Available Bandwidth End to End Delay Types of Delay Reducing Delay Packet Loss Preventing Packet Loss QoS and Voice Traffic QoS Policy QoS for Unified Communications Networks Step 1: Identify Traffic and Its Requirements Step 2: Divide Traffic into Classes Step 3: Define Policies for Each Traffic Class QoS Requirements QoS Requirements: Video Telephony QoS Requirements: Data Methods for Implementing QoS Policy Implementing QoS Traditionally Using CLI Implementing QoS with MQC Implementing QoS with Cisco AutoQoS Comparing QoS Implementation Methods Qos Models

20 Best Effort Model IntServ Model DiffServ Model QoS Model Evaluation Understanding QoS Mechanisms and Models DiffServ Model DiffServ Model DSCP Encoding DiffServ PHBs Expedited Forwarding PHB Assured Forwarding PHB DiffServ Class Selector DiffServ QoS Mechanisms Classification Marking Congestion Management Congestion Avoidance Policing Shaping Compression Link Fragmentation and Interleaving Applying QoS to Input and Output Interfaces Cisco QoS Baseline Model Cisco Baseline Marking Cisco Baseline Mechanisms Expansion and Reduction of Class Model Explaining Classification, Marking, and Link Efficiency Mechanisms Module QoS CLI MQC Components Configuring Classification MQC Classification Options Class Map Matching Options Configuring Classification with MQC Configuring Classification Using Input Interface and RTP Ports

21 Configuring Classification Using Marking Configuring Class Based Marking Class Based Marking Overview Configuring Class Based Marking Class Based Marking Configuration Example Trust Boundaries Trust Boundary Marking Configuring Trust Boundary Trust Boundary Configuration Example Mapping CoS to Network Layer QoS Default LAN Switch Configuration Mapping CoS and IP Precedence to DSCP CoS to DSCP Mapping Example DSCP to CoS Mapping Example Configuring Mapping Mapping Example Link Efficiency Mechanisms Overview Link Speeds and QoS Implications Serialization Issues Serialization Delay Link Fragmentation and Interleaving Fragment Size Recommendation Configuring MLP with Interleaving Configuring MLP with Interleaving MLP with Interleaving Example Configuring FRF.12 Frame Relay Fragmentation Configuring FRF.12 Fragmentation FRF.12 Configuration Example Class Based RTP Header Compression RTP Header Compression Example Configuring Class Based Header Compression Class Based RTP Header Compression Configuration Example Managing Congestion and Rate Limiting Congestion and Its Solutions Congestion and Queuing: Aggregation Queuing Components

22 Software Interfaces Policing and Shaping Policing and Shaping Comparison Measuring Traffic Rates Single Token Bucket Class Based Policing Dual Token Bucket Single Rate Class Based Policing Dual Rate Class Based Policing Configuring Class Based Policing Configuring Class Based Policing Class Based Policing Example: Single Rate, Single Token Bucket Class Based Policing Example: Single Rate, Dual Token Bucket Class Based Shaping Configuring Class Based Shaping Class Based Shaping Example Hierarchical Class Based Shaping with CBWFQ Example Low Latency Queuing LLQ Architecture LLQ Benefits Configuring LLQ LLQ Configuration Example Monitoring LLQ Calculating Bandwidth for LLQ Understanding Cisco AutoQoS Cisco AutoQoS VoIP Cisco AutoQoS VoIP Functions Cisco AutoQoSVoIP Router Platforms Cisco AutoQoS VoIP Switch Platforms Configuring Cisco AutoQoS VoIP Configuring Cisco AutoQoS VoIP: Routers Configuring Cisco AutoQoS VoIP: Switches Monitoring Cisco AutoQoS VoIP Monitoring AutoQoS VoIP: Switches Automation with Cisco AutoQoS Cisco AutoQoS for the Enterprise Configuring Cisco AutoQoS for the Enterprise

23 Monitoring Cisco AutoQoS for the Enterprise Monitoring Cisco AutoQoS for the Enterprise: Phase 2 Module Module Self Check Module Self Check Answer Key

24 Lab Guide Overview This guide presents the instructions and other information concerning the lab activities for this course. You can find the solutions in the Lab Activity Answer Key. Outline This guide includes these activities: Pullout Pod Layout and IP Addressing Description of Stimulated PSTN Lab 1 1: Configuring Voice Ports Lab 1 2: Configuring DSP s Lab 2 1: Configuring VoIP Call Legs Lab 3 1: Configuring Cisco Unified Communications Manager Express to Support Endpoints Lab 4 1: Implementing Digit Manipulation Lab 4 2: Implementing Path Selection Lab 4 3: Implementing Calling Privileges Lab 5 1: Implementing Gatekeepers Lab 5 2: Implementing Cisco Unified Border Element Lab 6 1: Implementing QoS Using Cisco AutoQoS and Manual Configuration Answer Key