Table Of Contents
Cisco Resource Pool Manager CLID/DNIS Call Discriminator
Related Features and Technologies
Supported Standards, MIBs, and RFCs
Enabling Resource Pool Management
Configuring Discriminator Profiles
CLID and DNIS Discriminator Example
resource-pool call treatment discriminator
resource-pool profile discriminator
show resource-pool discriminator
Cisco Resource Pool Manager CLID/DNIS Call Discriminator
This feature module describes the Calling Line Identification (CLID) and Dialed Number Information Service (DNIS) Call Discriminator feature, which rejects calls based on a list of calling party numbers that you provide. The Cisco Resource Pool Manager (RPM) CLID/DNIS Call Discriminator screens a call based on CLID/DNIS, and prevents it from reaching the called party as early as possible before the call is answered.
This feature module contains the following sections:
•
Supported Standards, MIBs, and RFCs
Feature Overview
The Cisco RPM CLID/DNIS Call Discriminator feature lets you specify a list of calling party numbers and/or called party numbers to be rejected for inbound calls. You can implement CLID/DNIS screening by expanding the existing call screening or Cisco RPM call discriminator feature. CLID/DNIS call screening provides an additional way to screen calls based on CLID/DNIS for both local and remote RPM.
Cisco RPM enables telephone companies and Internet service providers (ISPs) to share dial resources for wholesale and retail dial network services. With RPM, telcos and ISPs can count, control, and manage dial resources and provide accounting for shared resources when implementing different service-level agreements.
Resource pool management can be configured in Cisco network access servers (NASs) or, optionally, using one or more external Cisco Resource Pool Manager Servers (RPMSs). For more information on resource pool management, see the Resource Pool Management, Release 12.0 and Resource Pool Management with Direct Remote Services, Release 12.0 documents.
DNIS and ISDN call screening is already available in Cisco RPM using Cisco IOS software Releases 12.(0)4XI and higher. Cisco IOS Release 12.1(5)T introduces CLID call screening call discriminator that can be used along with the existing DNIS or ISDN screening.
Figure 1 shows the network configuration for the CLID/DNIS call screening feature.
Figure 1 CLID/DNIS Screening Network
Cisco RPM manages both incoming calls and outgoing call sessions. Cisco RPM differentiates dial customers through configured customer profiles based on DNIS and call type.
The customer profile is where resources are allocated. The customer profile defines how and when to answer a call.
The following sections describe the components of Cisco RPM that enable this feature. For more information, see the Resource Pool Management with Direct Remote Services, Release 12.0 document.
DNIS Groups
A DNIS group is a configured list of DNIS called party numbers that correspond to the numbers dialed to access particular customers, service offerings, or both. For example, if a customer from phone number 000-1234 calls a number 000-5678, the DNIS provides information on the number dialed—000-5678.
DNIS groups are used to select customer profiles or to specify a list of numbers to reject if the group is associated with a call discriminator.
Cisco RPM checks the DNIS number of inbound calls against the configured DNIS groups, and selects a customer profile based on the following criteria:
•
•
A DNIS/call type sequence can be associated with only one customer profile.
Call Types
The following call types are supported in the Cisco RPM:
•
•
•
•
Note
Call types are used within a customer profile to assign calls to the appropriate resource based on:
•
•
Note
CLID Groups
A CLID group is a configured list of CLID calling party numbers. The CLID group specifies a list of numbers to reject if the group is associated with a call discriminator. For example, if a customer from phone number 000-1234 calls a number 000-5678, the CLID provides information on the calling party number—000-1234.
A CLID/call type sequence can be associated only with one CLID group.
Discriminator Profiles
Cisco RPM discriminator profiles enable you to process calls differently based on the call type and CLID/DNIS combination. Resource pool management offers a call discrimination feature that rejects calls based on a CLID group and/or a DNIS group and a call type filter. When a call arrives at the NAS, the CLID and/or DNIS and the call type are matched against a table of disallowed calls. If the CLID and/or DNIS and call type match entries in this table, the call is rejected before it is assigned Cisco NAS resources, or before any other Cisco RPM processing occurs.
You can use the following types of discriminators for call screening:
•
•
•
The Cisco RPM CLID/DNIS Call Discriminator feature is independent of ISDN or DNIS screening done by other subsystems. ISDN or DNIS screening and Cisco RPM CLID/DNIS screening can both be present in the same system. Both features are executed if configured. Similarly, if DNIS PreAuthorization using authentication, authorization, and accounting (AAA) is configured, it is present in addition to Cisco RPM CLID/DNIS screening.
In Cisco RPM CLID/DNIS screening, the discriminator can be either a CLID discriminator, a DNIS discriminator, or a discriminator that screens on both the CLID and DNIS. The resulting discrimination logic is:
1.
2.
3.
Benefits
Cisco RPM CLID/DNIS Call Discriminator:
•
•
•
Restrictions
•
•
•
•
•
Related Features and Technologies
•
Related Documents
•
•
•
•
•
•
•
•
•
Supported Platforms
•
•
•
Supported Standards, MIBs, and RFCs
Standards
No new or modified standards are supported by this feature.
MIBs
No new or modified MIBs are supported by this feature.
To obtain lists of MIBs supported by platform and Cisco IOS release and to download MIB modules, go to the Cisco MIB web site on Cisco Connection Online (CCO) at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
RFCs
No new or modified RFCs are supported by this feature.
Prerequisites
•
•
Configuration Tasks
See the following sections for configuring the Cisco RPM CLID/DNIS Call Discriminator feature. Each task in the list is identified as either optional or required:
•
•
•
•
Enabling Resource Pool Management
To enable resource pool management on a Cisco NAS, perform the following step, beginning in global configuration mode.
Creating DNIS Groups
This configuration task is optional. For default DNIS service, no DNIS group configuration is required. The following characteristics and restrictions apply to DNIS group configuration:
•
•
•
•
To create DNIS groups, perform the following steps, beginning in global configuration mode:
Creating CLID Groups
You can add multiple CLID groups to a discriminator profile. You can organize CLID numbers for a customer or service type into a CLID group. Add all CLID numbers into one CLID group, or subdivide the CLID numbers using criteria such as call type, geographical location, or division.
To create CLID groups, perform the following steps, beginning in global configuration mode:
Configuring Discriminator Profiles
Discriminator profiles enable you to process calls differently based on the call type and CLID/DNIS combination. The section, Discriminator Profiles describes the different types of discriminator profiles that you can create.
To configure discriminator profiles for RPM implementation, perform the following steps, beginning in global configuration mode:
Step 1
Router(config)# resource-pool profile discriminator name
Creates a call discriminator profile and assigns it a name that can have a maximum of 23 characters.
Step 2
Router(config-call-d)# call-type {all | digital | speech | v110 | v120}
Specifies the type of calls you want to block. The NAS will not answer the call type you specify.
Step 3
Router(config-call-d)# clid group {default | name}
Optional. Associates a CLID group with the discriminator. If you do not specify a value for the CLID group name, the default CLID group is used. Any CLID number coming in on a call is in its respective default group unless it is specifically assigned a value for the CLID group name.
After a CLID group is associated with a call type in a discriminator, it cannot be used in any other discriminator.
Step 4
Router(config-call-d)# dnis group {default | name name}
Optional. Associates a group of DNIS numbers with the discriminator. If you do not specify a DNIS group name, the default DNIS group is used. Any DNIS number coming in on a call is in its respective default group unless it is specifically assigned a DNIS group name.
After a DNIS group is associated with a call type in a discriminator, it cannot be used in any other discriminator.
See the section, Creating DNIS Groups for information on creating DNIS groups.
Note
Verifying Your Settings
Step 1
If you enter the show resource-pool discriminator command without including a call discriminator name, a list of all current call discriminator profiles appears.
If you enter a call discriminator profile name with the show resource-pool discriminator command, the number of calls rejected by the selected call discriminator appears.
Router# show resource-pool discriminatorList of Call Discriminator Profiles:deny_CLIDRouter# show resource-pool discriminator deny_CLID1 calls rejectedStep 2
Router# show dialer [interface] type number
Configuration Examples
This section provides the following configuration examples:
DNIS Discriminator Example
The following is a sample configuration for a DNIS discriminator. The commands to enable resource pool management, configure a customer profile, create DNIS groups, and add numbers to the DNIS groups are in bold.
aaa new-model!! Enable resource pool managementresource-pool enable!resource-pool group resource digitalrange limit 20!! Configure customer profileresource-pool profile customer cp1limit base-size alllimit overflow-size 0resource digital digitaldnis group dgp2!resource-pool profile discriminator rpd1call_type digitaldnis group dgp1!isdn switch-type primary-5ess!controller T1 0framing esfclock source line primarylinecode b8zspri-group timeslots 1-24!interface Loopback1ip address 192.168.0.0 255.255.255.0!interface Serial0:23ip unnumbered Loopback1encapsulation pppip mroute-cachedialer-group 1isdn switch-type primary-5essno peer default ip addressppp authentication chap!! Configure DNIS groupsdialer dnis group dgp1number 5552003number 3456789number 2345678number 1234567!dialer dnis group dgp2number 89898989number 5551003!dialer-list 1 protocol ip permit!CLID Discriminator Example
The following is a sample configuration of a CLID discriminator. The commands to enable resource pool management, configure resource groups, configure customer profiles, configure CLID groups and DNIS groups, and add them to discriminator profiles are in bold.
!version 12.1! Enable resource pool managementresource-pool enable!! Configure resource groupsresource-pool group resource digitalrange limit 20!! Configure customer profilesresource-pool profile customer cp1limit base-size alllimit overflow-size 0resource digital digitaldnis group dgp2!! Configure discriminator profilesresource-pool profile discriminator disc1call-type digitalclid group clidgpx!resource-pool profile discriminator disc2call-type digitalclid group clidgpa!ip subnet-zero!isdn switch-type primary-5esschat-script dial ABORT BUSY "" AT dgp2 "ATDT \T" TIMEOUT 30 CONNECT \c!!ip local pool default 192.168.13.181 192.168.13.226ip classlessip route 171.0.0.0 255.0.0.0 Ethernet0ip route 172.0.0.0 255.0.0.0 Ethernet0no ip http server!!! Configure DNIS groupsdialer dnis group dgp1number 4085551003number 5552003number 2223333number 3456789number 2345678number 1234567!dialer dnis group dgp2number 89898989number 4084442002number 4085552002number 5551003!dialer clid group clidgpanumber 12321224!! Configure CLID groupsdialer clid group clidgp1number 2121212121number 4085552002!dialer clid group clidgpynumber 1212121212!dialer clid group clidgpxnumber 4089871234!dialer clid group clidgpznumber 5656456dialer-list 1 protocol ip permit!!!line con 0exec-timeout 0 0logging synchronoustransport input noneline 1 96no execexec-timeout 0 0autoselect pppline aux 0line vty 0 4exec-timeout 0 0transport input none!scheduler interval 1000endCLID and DNIS Discriminator Example
The following example shows a subsection from a CLID and DNIS (logical AND) discriminator configuration:
!!config subsection to define a LOGICAL AND type (clid AND dnis) RM Discriminator ! resource-pool enable ! resource-pool group resource digital range limit 20 ! resource-pool profile customer cp1 limit base-size all limit overflow-size 0 resource digital digital dnis group default ! resource-pool profile discriminator blockThese call-type digital dnis group blockedDNIS clid group blockedCLID ! dialer dnis group blockedDNIS number 1234567 number 2345678 number 3456789 number 2223333 number 5552003 number 4085551003 ! dialer clid group blockedCLID number 5551003 number 4085552002 number 4084442002 number 89898989 !Command Reference
This section documents new or modified commands. All other commands used with this feature are documented in the Cisco IOS Release 12.1 command reference publications.
•
•
•
clid group
To add a Calling Line Identification (CLID) group to a discriminator, use the clid group CLID configuration command. To remove a CLID group from a discriminator, use the no form of this command.
clid group {default | name}
no clid group {default | name}
Syntax Description
Defaults
CLID screening is not used.
Command Modes
CLID configuration mode
Command History
Usage Guidelines
Use the clid group command to add a CLID group (which specifies the calls to reject) to the discriminator. If you use the default option, CLID call screening is not used.
Examples
The following example shows a call discriminator named clidDeny that is created and configured to block digital calls from the CLID group named clidgp1.
Router(config)# resource-pool profile discriminator clidDenyRouter(config-call-d)# call-type digitalRouter(config-call-d)# clid group clidgp1Related Commands
call type
Specifies the type of calls you want to block.
Creates a call discrimination profile and assigns it a name.
dialer clid group
To create a Calling Line Identification (CLID) group in the resource pool and assign it a name, use the dialer clid group global configuration command. To remove a CLID group from the resource pool, use the no form of this command.
dialer clid group name
no dialer clid group name
Syntax Description
Defaults
No default behavior or values.
Command Modes
Global configuration mode
Command History
Usage Guidelines
Use the dialer clid group command to create a CLID group and assign it a name. The CLID group name must be the same as the name used when configuring the customer profile.
Customer profiles are configured with a DNIS group or CLID group or both, and call type. The DNIS and CLID (or both) and call type of the incoming call is used to find the appropriate customer profile.
Examples
The following example shows the command to configure a CLID group named clidgp1. After you enter this command, the router prompt changes to the CLID configuration mode.
Router(config)# dialer clid group clidgp1Router(config-clid-group)#Related Commands
number
To place a number in a Calling Line Identification (CLID) group, use the number CLID configuration command. To remove a number from a CLID group, use the no form of this command.
number clid-number
no number clid-number
Syntax Description
Defaults
No default behavior or values.
Command Modes
CLID configuration mode
Command History
12.0(4)XI
This command was introduced.
12.1(5)T
This command was modified to add CLID numbers to a CLID group as well DNIS numbers to a DNIS group.
Usage Guidelines
You can organize CLID numbers for a customer or service type into a CLID group. You can add multiple CLID groups to a customer profile. Add all CLID numbers into one CLID group, or subdivide the CLID numbers using criteria such as call type, geographical location, or division.
Examples
The following example shows how to assign a number to the CLID group, clidgp1.
Router(config)# dialer clid group clidgp1Router(config-clid-group)# number 2121212121Related Commands
resource-pool call treatment discriminator
To modify the signal (ISDN cause code) sent to the switch when a discriminator rejects a call, enter the resource-pool call treatment discriminator global configuration command. To disable this function, use the no form of this command.
resource-pool call treatment discriminator {busy | no-answer | channel-not-available}
no resource-pool call treatment discriminator {busy | no-answer | channel-not-available}
Syntax Description
Defaults
No answer for a customer profile; CNA for a resource.
Command Modes
Global configuration
Command History
Usage Guidelines
The resource-pool call treatment discriminator global configuration command sets up the signal sent back to the telco switch in response to incoming calls.
Examples
The following command answers the call, but sends a busy signal to the switch when profile authorization or resource allocation fails:
Router(config)# resource-pool call treatment discriminator busyThe following command prevents the call from being answered when profile authorization fails and the discriminator rejects a call:
Router(config)# resource-pool call treatment discriminator no-answerresource-pool profile discriminator
To create a call discrimination profile and assign it a name, use the resource-pool profile discriminator global configuration command. Use the no form of this command to remove a call discrimination profile from the running configuration.
resource-pool profile discriminator name
no resource-pool profile discriminator name
Syntax Description
name
Name of the call discrimination profile created. This name can have a maximum of 23 characters. You can add a CLID or DNIS group to the discriminator profile created. See the section, Configuring Discriminator Profiles.
Defaults
No default behavior or values.
Command Modes
Global configuration mode
Command History
12.0(4)XI
This command was introduced.
12.1(5)T
This command was modified to add CLID groups as well as DNIS groups to a discriminator.
Usage Guidelines
Discriminator profiles enable you to process calls differently, based on the call type and DNIS or CLID combination. Use the resource-pool profile discriminator command to create a call discrimination profile, and then use the clid group command to add a CLID group to a discriminator.
To create a call discrimination profile, you must specify both the call type and CLID group. Once a CLID group is associated with a call type in a discriminator, it cannot be used in any other discriminator.
Examples
The following example shows a call discriminator named clidDeny that is created and configured to block digital calls from the CLID group named clidgp1:
Router(config)# resource-pool profile discriminator clidDenyRouter(config-call-d)# call-type digitalRouter(config-call-d)# clid group clidgp1Related Commands
show resource-pool discriminator
To see how many times an incoming call has been rejected for a specific Calling Line Identification (CLID) and call-type combination, use the show resource-pool discriminator command in user and privileged EXEC mode.
show resource-pool discriminator [name]
Syntax Description
name
(Optional) Specifies the name of the specific DNIS/call-type that will be rejected. The name can have a maximum of 23 characters.
Defaults
No default behavior or values.
Command Modes
EXEC mode.
Command History
12.0(4)XI
This command was introduced.
12.1(5)T
This command was modified to include the CLID group(s) if the discriminator (s) contain CLID groups.
Usage Guidelines
Use the show resource-pool discriminator EXEC command to see how many times an incoming call has been rejected due to a specific CLID and call-type combination.
If you enter the show resource-pool discriminator command without including a call discriminator name, a list of the current call discriminator profiles appears. If you enter a call discriminator profile name with the show resource-pool discriminator command, the number of calls rejected by the selected call discriminator appears.
Examples
The following command displays the list of call discriminator profiles configured.
Router# show resource-pool discriminatorList of Call Discriminator Profiles:cd1cd2cd3cd4The following command displays the number of calls rejected by the call discriminator cd1 since the last clear command was used (this number is cumulative).
Router# show resource-pool discriminator cd10 calls rejectedRelated Commands
Guest
