# Network Zones

## Purpose

The Network Zones form is used to create zones for compression and bandwidth management, to associate the zones to time zones for the display of local time on IP sets, to configure the zone's Location Based Number (LBN) prefix to be used for Location Based Call Routing (optional), and to define the zone's CESID (optional).

This form is also used to configure a unique Default Billing Number and Default Calling Party Number (CPN) for each zone in a cluster. Customers can use zones to distribute different audio sources for Music on Hold or recorded announcements to branch offices or workgroups.

The created zones can then be applied to different devices in the Station Attributes form.

Use this form when performing the following tasks:

- IP Networking/XNET Compression

- Program Bandwidth Management

- Programming Date and Time

- Configuring Location Based Call Routing

- Emergency Services - CESID Programming

- Programming Call Billing for SIP Gateway

- Programming Workgroup and Branch Office Music on Hold

## Conditions

- This form must be shared with all ICPs in the network that perform bandwidth management. If this form is not shared, Bandwidth Management may not function properly if the user enters conflicting configuration information into the network elements. However, in a network with multiple customers, with the Call Billing for SIP Gateway feature enabled, this form must only be shared with All Cluster Members, since different customers cannot share the same set of default billing and calling party numbers.

- For each zone, the Default Billing Number and Default CPN fields can both be configured or both blank, or one can be configured while the other is blank. If configured, they are usually the same, but can be different.

- Workgroup and Branch Office Music on Hold

## Field Descriptions

Parameter | Description | Default Value
Zone ID | A system-generated ID between 1-999 used in system forms to identify each unique zone. |
Intra-zone Compression | Select "Yes" to apply compression to calls originating and terminating in the same zone. The default value is "No". NOTE: Prior to 3300 ICP Release 8.0, you could change the intra-zone compression option for Zone 1. In Release 8.0 and later, the intra-zone compression option for Zone 1 is set to "No". You cannot change this setting. | No
Group Zone | Enter a value to force endpoints in another zone (or zones) with the same Zone Group value to use higher quality audio compression codecs. For example, to allow higher audio quality on calls between between users in Zone 5 and 6, assign both zones the same Zone Group number from 1 to 250.. The default (blank) limits devices in different zones to negotiate higher compression (but lower audio quality) codec selections. For more information, see IP Networking/XNET Compression. | Blank
Intra-zone FAX Profile | Enter the Profile ID of the Intra-zone FAX profile that you want to apply to this zone. The Intra-zone FAX profile determines the communication settings that the system applies to FAX calls that occur between the zones. You define the Intra-zone FAX profiles in the Fax Service Profiles form. All zones default to Profile 1 which applies settings for G.711 pass through. Profile 2 defines the settings for Fax Relay (T.38) You cannot modify Profile 1. | Blank
Label | Enter a unique description to identify each zone ID. | Blank
SMDR Tag | Enter a maximum of five ASCII characters of the location tag that identifies the zone in which an IP device is located, based on the Location Specification form. Required for Location Based Accounting, and only if enabled in SMDR Options form. | Blank
Time Zone | Select the time zone where IP sets in this Network Zone are located. The time zone selected determines which time is displayed on IP sets, the local time of the host controller or the local time of the set. Leave the default value if the sets and host controller are in the same time zone. The maximum number of times zones allowed is 18. For more information, see Date and Time. | Time zone from the Network Elements form
LBN Prefix | Enter a 1- to 7-digit Location Based Number (LBN) prefix for Location Based Call Routing use. Valid digits are: 1-9, *, #. In most cases, this field is configured with an Automatic Route Selection (ARS) digit string, but any other dialable string is valid. This field is optional, but if it is left blank, the Default Prefix in the Location Based Numbers form must be configured for the Location Based Call Routing feature to work. | Blank
Zone CESID | This optional field defines the CESID to be sent to the PSAP in the event of emergency call when no value is programmed against the switch or the calling directory number. Enter a 1- to 12-digit string; valid digits are: 0-9. | Blank
Default Billing Number | Enter a unique, up to 26-character long number to be used as a default billing number for SIP trunk calls from all devices in the zone. Valid digits are: 0-9. MiVoice Business sends this number as the billable number to a SIP trunk gateway, unless the caller's or the diverting party's Billing Number is configured in the Associated Directory Numbers or User and Services Configuration form or option "Use Default Billable Number for Trunk Billing" in the Class of Service Options form is not enabled. This field is optional. For more information, see Call Billing for SIP Gateway. The Default Billing Number appears in the P-Asserted Identity (PAI) header. NOTE: This field can be configured and used independent of the Default CPN. | Blank
Default CPN | Enter a unique, up to 26-character long number to be used as a default Calling Party Number (CPN) for SIP trunk calls from all devices in the zone. Valid digits are: 0-9. MiVoice Business sends this number to a SIP trunk gateway to identify the calling or diverting party, unless the caller's or the diverting party's public number (CPN Substitution digits) is configured in the Associated Directory Numbers or User and Services Configuration form. This field is optional. For more information, see Call Billing for SIP Gateway. The zone's default CPN for the caller appears in the From: header and for the diverting party, in the Diversion header. NOTE: This field can be configured and used independent of the Default Billing Number. | Blank
Audio Source | Select the audio source to use when a call is put on hold by the user or queues to the ring group or other destination. Choices are Embedded and IP Endpoint. | Blank
Embedded Music Source | If the Audio Source is Embedded, select the index number of the audio file to use. NOTE: You can select a vacant number (one which has no file assigned to it) but you must upload a file and assign it to the selected number before the source can be used. For more information, see System Audio Files Update. | Blank
Music-On-Hold Music Source | If the Audio Source is IP Endpoint, enter the directory number of the port used to stream the audio. | Blank