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Chapter 5 Dial Plan Architecture and Configuration
Dial Plan Guidelines and Configuration
5-20
Cisco IP Telephony Network Design Guide
78-11103-03
North American dialing includes 911 services. The route group is configured to
discard the access code by digit manipulation. This strips the 9 off the string sent
to the local PSTN gateway, which is a Cisco IOS gateway in this case.
Cisco CallManager denotes any digits to the left of the dot (.) as the access code,
so that when the discard access code feature is selected, it will strip off any digits
to the left of the dot.
Note In the example route group, two gateways are listed in order of
preference. This is how gateway redundancy is achieved in the event
of an all-trunks-busy condition or a gateway failure.
Figure 5-8 shows the configuration required in each Cisco IOS PSTN gateway.
The goal is to configure the Cisco IOS H.323 gateway with as few entries as
possible. Ideally, all the dial plan configuration would occur in
Cisco CallManager. While this is possible with gateways based on MGCP or the
Skinny Gateway Protocol, the more prominent gateways available are
H.323-based.
Figure 5-8 Cisco IOS PSTN Gateway Configuration
dial-peer voice 1 voip
codec g711ulaw
dtmf-relay h245-alphanumeric
destination-pattern 6....
session target ipv4:10.1.10.5
!
dial-peer voice 2 pots
destination-pattern......
port 1/0:1
!
dial-peer voice 3 pots
destination-pattern 1.......
prefix 1
port 1/0:1
!
dial-peer voice 4 pots
destination-pattern 911
prefix 911
port 1/0:1
Dial peer for all incoming calls from
PSTN to Cisco CallManager’s
IP address (must be G.711)
Cisco CallManager’s
IP address
Dial peer for all 7-digit
outgoing PSTN numbers
Dial peer for all 10-digit
outgoing PSTN numbers
Dial peer for 911 services
40801
- Cisco IP Telephony 1
- Network Design Guide 1
- CONTENTS 3
- Contents 4
- 4 Gateway Selection 4-1 6
- 8 Quality of Service 8-1 8
- 11 Network Management 11-1 10
- Audience 12
- Organization 12
- Revision History 14
- Conventions 15
- Additional Information 17
- Obtaining Documentation 18
- Documentation Feedback 19
- Cisco.com 19
- Technical Assistance Center 20
- Contacting TAC by Telephone 21
- Introduction 23
- Chapter 1 Introduction 24
- General Design Models 24
- Single-Site Model 25
- Overview 36
- Power Protection Strategies 38
- Network Infrastructure 39
- High Availability 41
- Further Information 42
- Physical Connectivity Options 43
- Power to IP Phones 44
- Daughtercard 45
- Inline Power Configuration 47
- Power Consumption 49
- Error and Status Messages 50
- Dual Supervisors 50
- Power Protection 50
- External Patch Panel Power 51
- Summary of Recommendations 54
- Wall Power 54
- IP Addressing and Management 55
- CDP Enhancements 56
- Power Requirement Field 57
- Voice VLAN Configuration 58
- Connecting to the Network 59
- Trust Boundaries 63
- Untagged 802.3 64
- Tagged 802.1q 64
- QoS Commands 67
- Cisco CallManager Clusters 73
- Device Weights 75
- Intracluster Communication 77
- Cisco CallManager Redundancy 78
- Device Pool Configuration 81
- Campus Clustering Guidelines 84
- Intercluster Communication 86
- Gateway Selection 95
- Supported Protocols 96
- DTMF Relay 97
- Skinny Gateways 98
- Cisco IOS H.323 Gateways 98
- MGCP Gateway 100
- Supplementary Services 101
- IOS H.323 Gateways 102
- Chapter 4 Gateway Selection 104
- 78-11103-03 104
- Protocol 107
- Skinny Gateway 107
- Dial Plan Architecture and 109
- Configuration 109
- Route Pattern 114
- Route List 115
- Route Group 115
- Digit Translation Tables 117
- On-Net Route Pattern 119
- Restrictions 122
- Partitions 123
- Calling Search Space 123
- The Role of a Gatekeeper 129
- Processing 131
- Call Admission Control 133
- Operational Model 138
- Gatekeeper Configuration 139
- Dial Plan Considerations 145
- Conferencing 160
- Intercluster Calls 168
- Local PSTN Calls 168
- Design Example 168
- Quality of Service 175
- Traffic Classification 176
- Interface Queuing 176
- Chapter 8 Quality of Service 177
- Campus QoS Model 177
- WAN QoS Model 178
- WAN QoS Tools 179
- Link Efficiency Techniques 181
- Traffic Shaping 183
- Best Practices 184
- Catalyst DSP Provisioning 187
- Conferencing Design Details 190
- Conferencing Caveats 192
- Voice mail 194
- CallManager 194
- MTP Transcoding Caveats 198
- Catalyst 4000 Voice Services 199
- Catalyst 6000 Voice Services 201
- Network Models 203
- IP network 206
- Why is the DPA 7630 Needed? 223
- Can I Just Use SMDI? 223
- Choosing an Integration Mode 224
- Figure 10-12) 227
- Network Management 229
- Chapter 11 Network Management 230
- System Logging Components 231
- Syslog Collector 232
- SAenvProperties.ini 233
- Database 233
- CiscoWorks2000 236
- Campus Manager 239
- User Tracking 240
- Trace Path Analysis 241
- Resource Manager Essentials 243
- System Logging Management 244
- Syslog Message Filtering 246
- Glossary 250
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