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IMPORTANT

The Transparency Profile is the recommended method of configuring transparency on the SBC Core for new deployments as well as when applying additional transparency configurations to existing deployments. Do not use IP Signaling Profile flags in these scenarios because the flags will be retired in upcoming releases.

Refer to the SBC SIP Transparency Implementation Guide for additional information.

Use the Zone window to create and work with zones. A zone is used to group a set of objects in a particular customer environment. A zone can also be referenced by a SIP or H.323 trunk group.

Note

Trunk group names must be unique across all address contexts, zones, and trunk group types. 

Note

IP peer names must be unique across all address contexts, and zones.

To View the Zone List

On the SBC main screen, go to Configuration > System Provisioning > Category: Base Provisioning > Zone or
Configuration > System Provisioning > Category: SIP Carrier Peering > Zone or
All > Address Context > Zone

The Zone window opens. By default all zones are listed. Select an Address Context to list only the zones in that address context.

System Provisioning - Zone

To Create a Zone

To create a new zone:

  1. Click New Zone. The Create New Zone window opens.

    Create New Zone Window

  2. Use the following table to configure the zone and then click Save.

Zone Parameters

 


Parameter


Description

Name

Specifies the name of the zone. Must be 1 to 23 characters. The name must be unique across all address contexts.

ID

specifies a unique numeric ID for this zone. The value ranges from 1 to 4096. The ID must be unique across all address contexts.

Disable Zone Level Loop Detection

  • If Disabled (default), the Global Loop Detection flag takes precedence.

  • If Enabled, Loop Detection is disabled irrespective of the Global Loop Detection flag.

DNS Group

Select the name of the default DNS server group for the zone.

Remote Device Type

Select the type of device facing this Zone. The options are:

  • None (default)
  • Access Device
  • App Server
  • Core
  • Nni
Domain NameSpecifies the name of the fully qualified domain name for this Zone. The name must be 1 to 63 characters.
SIP Register Relay

Enable this option flag to relay REGISTER messages using the routes from a PSX. Options are:

  • Disabled (default)
  • Enabled
Dialog Transparency

Specifies if dialog transparency is enabled for SIP messages processed in the zone. If enabled, SBC sends "Call-ID", "From" tag, and "To" tag transparently in the outgoing message.

Note

The parameter Dialog Transparency must be enabled in both the ingress and egress zones. Otherwise, the sonusSbxDialogTransparencyMisConfiguredNotification alarm is raised on the zone in which the flag is disabled.

Note

To enable Dialog Transparency for a zone, first disable all SIP Sig Ports for that zone.

  • Disabled (default): SBC translates the dialog identifiers in the Target-Dialog header received in INVITE and REFER messages and sends the Target-Dialog header with translated dialog identifiers on the other leg.
  • Enabled: Target-Dialog header translation is not performed. However, the header is transparently passed if configured in transparency profile.

 

Note

 The following features are not supported on the SBC when Dialog Transparency is enabled:

  • Support of local handling of REFER (REFER relay is supported)
  • Late media support 
  • Dialog Transparency support in REGISTER
  • NICE recording call flows
  • GW-GW support

For feature functionality and configuration guidance, see Downstream Forking Support and Configuring Downstream Forking with Dialog Transparency.

Retarget Support

Use this option to either disable load balancing or use the system-level load balancing settings for this zone.

  • Disabled – Load balancing is disabled for this zone regardless of the system level settings.
  • Use System Level Configuration (default) – The system-level settings for Invite Retarget Mode and Register Retarget Mode are applied to this zone. Refer to System - Load Balancing Service for system-level settings.
Advance Peer Control

Use this option to control whether the Mode, Action and Block Direction configuration is active in IP peers within the zone. Refer to System Provisioning - IP Peer for information on these options. Options are:

  • Disabled (default)
  • Enabled
Flexible Policy Adapter Profile

Use this Zone/Trunk Group parameter to associate a SIP Adapter Profile configured for flexible policy (Profile Type=Flexible Policy) with a particular Zone/Trunk Group.

If a Flexible Policy Adapter Profile is provisioned both at the trunk group and zone levels, the trunk group’s profile takes precedence. If an Input Adapter Profile is configured, it is applied first to manipulate the PDU and then the Flexible Policy Adapter Profile rules are applied on the manipulated PDU.

NOTE:  Flexible Policy is not supported on ERE and is intended for use with an external PSX only.

 

SIP Header For Anonymous Call

Set this parameter to Remote Party ID to allow the SBC to pick the SIP header for calls from surrogate registered endpoints when the username in the From header is received as anonymous.

  • None – The SBC uses default behavior.
  • Remote Party ID – The SBC picks the SIP Header when a username in the FROM header is received as anonymous.

To Edit a Zone

To edit a zone:

  1. Click the radio button adjacent to the zone you want to edit. The Edit Selected Zone window opens.
  2. Make the required changes and click Save.

To Delete a Zone

To delete a zone:

  1. Click the radio button adjacent to the zone you want to delete.
  2. Click the delete icon (X) at the end of the row.
  3. Confirm the deletion when prompted. 

Zone Commands

The zone commands are available from both system-level and configure modes. These command allows you to perform system-level commands against a particular zone, such as recovering blacklisted endpoints and resetting statistics counts on all signaling ports.

When a zone is selected from the Zone List window, the  Zone Commands window appears at the bottom of the Zone window.

Select a command from the Commands drop-down list:

Commands Dropdown

The commands are described in the following table:

Zone - Commands - Description

CommandsDescription
CAC Non Register End Point Remove Entry

Removes any CAC entry for the specified source IP address.

  • Source Ip Address—Specifies the source IP address for the CAC entry to be removed.
SIP ARS Endpoint Recovery All

Recovers all blacklisted endpoints in this zone.

NOTE: This command only applies for peers blacklisted using the ARS mechanism (not via PATHCHECK).

SIP ARS Endpoint Recovery By IP

Recovers a blacklisted endpoints in this zone identified by IP address and port. 

  • IP Address – Endpoint's IP address.
  • Port – Endpoint's port number.

NOTE: This command only applies for peers blacklisted using the ARS mechanism (not via PATHCHECK).

SIP Sig Conn Reset AllResets all the statistics counts to zero on all SIP signaling port connections.
SIP Sig Port Reset AllResets all the statistics counts to zero on all SIP signaling ports.

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