# Ring Groups

## Purpose

The Ring Groups form is used to assign directory numbers to ring groups. The form consists of a group pilot number, ring mode, name and a list of all directory numbers belonging to the group. This form supports Range programming.

Use this form when performing the following tasks:

- Ring Groups

## Conditions

- A Multi-Device
  This Service Level indicates that the directory number (DN) is assigned to a user that has only basic telephony functionality (e.g., emergency or attendant calls) until programmed as a member of a Multi-Device user group or suite. The DN does not use an IP User License. However, the group or suite has a Multi-device Users or Multi-device Suites license which one person can use at a time in order to receive full telephony service. DN can be programmed as a ring group member, provided that the DN is the prime member of a Multi-device User Group.

- Remote Directory Numbers (RDN) can be assigned to a ring group (including Emergency Response group but not a Emergency type hunt group ) and displayed in this form.

- There is a limit to the number of ONS ports on a single AX or ASU II card that can belong to a specific suite or ring group. When you connect ONS ports that will be configured as part of a common suite or ring group, spread the ports across multiple cards, with a maximum of three ports on any one card.

- When a new ring group is added to the system, the following default values are assigned:

- call coverage services index: 1

- call queued timer: 20 seconds

- call reroute indexes: 1

NOTE: Any provisioning change to a ring group will reset the starting position member index that is saved against each ring group back to its default value of 0 - the index of the first member in the ring group.

## Field Descriptions

Parameter | Description | Default Value
Ring Group | Enter a unique directory number up to seven digits in length to identify the ring group. This pilot number is the number dialed to access the ring group. See Ring Groups Conditions for valid numbers. | Blank
Local-only DN | Allows you to specify the directory number of the ring group as a local-only directory number in a cluster. | Not Selected
Ring Group Mode | Select whether to ring all members or to use a search method (terminal, circular, etc.) to find the first available member to ring. Ring All - rings all members of the group in unison. Second caller is in a queue until the first call is answered. Terminal Ring - searching always from the top of the member list, each call rings the first available member of the group. If not answered before the Call Ringing Timer expires, the call is redirected away from the group. If the search finds no available member, the call is placed in a queue; then, after the Call Queued Timer expires, it is sent to an overflow or rerouting destination. Terminal Cascade Ring - starting the hunt from the top of the member list, each new call rings the first available member for the duration of the Cascade Ring Timer. When the timer expires, the hunt continues down the list for the next available member, and so on. When the initial starting position (top of the list) is reached, hunting proceeds until either a member answers the call or the Call Ringing Timer expires and the call is redirected to an overflow or alternate destination. If the initial hunt finds no available member, the call queues; then, after the Call Queued Timer expires, it is sent to an overflow or rerouting destination. Circular Ring - searching begins at the member after the last one to receive a call and stops to ring the first available member. If not answered before the Call Ringing Timer expires, the call is redirected away from the group. If the hunt finds no available member, the call is placed in a queue; then, after the Call Queued Timer expires, it is sent to an overflow or rerouting destination. Circular Cascade Ring - using the circular search method rings the first available group member after the last one to receive a call. Ringing lasts for the duration of the Cascade Ring Timer. When the timer expires, the search continues down the list for the next available member, and so on. When the hunt starting position is reached, the search continues until either a member answers the call or the Call Ringing Timer expires and the call is redirected to an overflow or alternate destination. If the initial search finds no available member, the call queues; then, after the Call Queued Timer expires, it is sent to an overflow or rerouting destination. NOTES It is recommended that the Terminal and Terminal Cascade ring modes be used only for small groups, with low traffic scenarios and with very few or no Remote Directory Number (RDN) Local directory numbers are hosted on the element that you are logged into while remote directory numbers are hosted on another element in the cluster. Users can call remote directory numbers from any extension in the cluster by just dialing the number. The Remote Directory Number Assignment form lists the remote directory numbers in a cluster network. The Remote Directory Number assignment forms of the cluster elements are updated via OPS Manager synchronizations or via Remote Directory Number Synchronization. members. For groups that include RDN members, circular ring mode is recommended to prevent calls to busy remote members, since the state of the RDN is not stored on the node that houses the ring group. For the Circular and Circular Cascade ring modes, the next member position is not remembered after a reboot and it is not shared to the resilient backup. In both cases, the search will start at the top of the member list when the first call is received. | Ring All
Ring Group Name | System-generated, protected field. Indicates the name under which the ring group is listed in the telephone directory. If no name exists in Telephone Directory form for the pilot number, this field is blank. |
Ring Group Type | Select whether to send an SNMP Simple Mail Transfer Protocol. The network management protocol of choice for monitoring and management of TCP/IP based networks. Trap Notification of an event sent from a device to a monitoring station (SNMP, etc.). for emergency notification purposes to Mitel Emergency Response Adviser whenever the ring group pilot number receives an internal call or DID call. Leave the field blank if emergency notification is not required. | Blank
Class of Service - Day | Enter the Class of Service to be assigned to all Ring Group members when the system is in Day service mode. This field cannot be blank. NOTES If some members are remote and they belong to other Ring Groups on the same controller, it is recommended that the same Day COS is programmed for all local Ring Groups to which the remote members belong. You must program all three COS fields before you can enable resiliency for the ring group | 1
Class of Service - Night1 | Enter the Class of Service to be assigned to all Ring Group members when the system is in Night1 service mode. This field cannot be blank. NOTES If some members are remote and they belong to other Ring Groups on the same controller, it is recommended that the same Night1 COS is programmed for all local Ring Groups to which the remote members belong. You must program all three COS fields before you can enable resiliency for the ring group | 1
Class of Service - Night2 | Enter the Class of Service to be assigned to all Ring Group members when the system is in Night2 service mode. This field cannot be blank. NOTES If some members are remote and they belong to other Ring Groups on the same controller, it is recommended that the same Night2 COS is programmed for all local Ring Groups to which the remote members belong. You must program all three COS fields before you can enable resiliency for the ring group | 1
Zone ID | Assign a Network Zone ID (1-999) for Ring Groups in time zones different from their host controller. The system uses this assign zone ID to determine the appropriate time zone offset when applying a Business Schedule for Call Rerouting Always. With no zone ID assigned to the Ring Group, the system applies the business schedule using the zone ID (and related time zone) assigned to the host MiVoice Business. | Blank
Home Element | Displays the name of the primary element for the ring group. |
Secondary Element | Allows you to enable and disable resiliency for the ring group. On the primary (local) element, select the secondary element for the resilient ring group. The secondary element is selectable from the members of the same cluster as the primary element. If the primary element fails, the ring group fails over to the secondary element that is specified in this field. You must program the COS fields before you can enable a ring group with resiliency. Refer to the MiVoice Business Resiliency Guide for instructions on how to configure ring group resiliency. In the this form, the secondary element field displays "Not Assigned" if the group is not resilient. If the secondary element field is blank, the group is resilient but the secondary element name is blank. In the Add and Change window, the secondary element field allows you to enable resiliency. To enable resiliency, select an element from the drop-down list. To disable resiliency, select the "Not Assigned." On the secondary element, this field is read-only. If the Local-only DN box is selected, this field is disabled. | Not Assigned
Call Ringing Timer | The length of time a caller is ringing a ring group member. When this timer expires, the caller is redirected away from the ring group. Range: 5 seconds to 300 seconds. NOTE: It is strongly recommended that this value be smaller than either the System "Call Rerouting Timer" or the COS option "Answer Plus System Reroute Timer". In the worst case scenario, a call rings for the duration of both timers before being redirected to an overflow or rerouting destination. For examples see Timer Interactions for details | 20 seconds
Cascade Ring Timer | This timer is used to time the duration each available member of a Terminal Cascade or Circular Cascade ring group is rung. When the timer expires, the next available member of the ring group is rung. Range: 5 seconds to 125 seconds. | 20 seconds
Overflow Point | If the ring group is unavailable, or the Call Ringing or Call Queued Timer expires, the caller will be redirected to the Overflow Point. See Ring Groups Conditions for details. NOTE: It is strongly recommended that Overflow (this field) or rerouting destination be programmed. Otherwise, incoming calls may be dropped. | Blank
Call Coverage Service Number | Assign a Call Coverage Service index number to the group. Enter a number between 1 and 255. | 1
Call Queued Timer - Minutes | Specify the duration (in minutes) a caller is queued to a ring group. When the timer (combined minutes and seconds) expires, the call is redirected away from the ring group to the Overflow Point (if configured) or the Call Rerouting First Alternatives - No Answer destination. The range for this field is 0 to 54 minutes. The maximum timer value (combined minutes and seconds) is 54 minutes. NOTES The Call Queued Timer combined value (minutes and seconds) must be greater than the value of the combined Predictive Overflow Average Call Duration fields. It is strongly recommended that this timer be smaller than either the System "Call Rerouting Timer" or the COS option "Answer Plus System Reroute Timer". In the worst case scenario, a call rings for the duration of both timers before being redirected to an overflow or rerouting destination. For examples see Timer Interactions for details. | 0 minutes
Call Queued Timer - Seconds | Specify the duration (in seconds) a caller is queued to a ring group. When the timer (combined minutes and seconds) expires, the call is redirected away from the ring group to the Overflow Point (if configured) or the Call Rerouting First Alternatives - No Answer destination. The range for this field is 5 to 59 seconds. The maximum timer value (combined minutes and seconds) is 54 minutes. NOTES The Call Queued Timer combined value (minutes and seconds) must be greater than the value of the combined Predictive Overflow Average Call Duration fields. It is strongly recommended that this timer be smaller than either the System "Call Rerouting Timer" or the COS option "Answer Plus System Reroute Timer". In the worst case scenario, a call rings for the duration of both timers before being redirected to an overflow or rerouting destination. For examples see Timer Interactions for details. | 20 seconds
Predictive Overflow Average Call Duration - Minutes | Select the average call duration (average agent talk time plus work timer) by selecting the minutes (0 to 54) and seconds (0 to 59) from the drop-down menus. This value (combined minutes and seconds; maximum 54 minutes) should not be greater than the Call Queued Timer. The system uses this value to calculate whether a caller should be queued or immediately redirected to the overflow or reroute destination. If you set both fields (Minutes and Seconds) to Blank, the system disables predictive overflow for the ring group. See Ring Groups Conditions for details. | Blank
Predictive Overflow Average Call Duration - Seconds | Select the average call duration (average member talk time plus work timer) by selecting the minutes (0 to 54) and seconds (0 to 59) from the drop-down menus. This value (combined minutes and seconds; maximum 54 minutes) should not be greater than the Call Queued Timer. The system uses this value to calculate whether a caller should be queued or immediately redirected to the overflow or reroute destination. If you set both fields (Minutes and Seconds) to Blank, the system disables predictive overflow for the ring group. See Ring Groups Conditions for details. | Blank
Last Group Member Routing - Caller Callback Time | Specify the duration (in minutes) within which if a caller calls back (using the same CgPN or ANI(Automatic Number Identification)), the caller is connected to the same ring group member that attended the call previously. The range for this field is 10 to 480 minutes. Specifying a value in this field enables the Last Group Member Routing (LGMR) feature. When the duration expires, the system clears the feature data(CgPN or ANI of the caller, ring group to which the call was made, and the ring group member's number that answered the call) for the CgPN or ANI(Automatic Number Identification). | Blank
Last Group Member Routing - Wait for Member Time | Specify the duration (in seconds) for which a caller waits for the ring group member to answer the call. After the specified duration, the call is presented to the next available ring group member based on the ring group configuration. The range for this field is 10 to 180 seconds. NOTE: If the Last Group Member Routing - Caller Callback Time field is blank, this field is ignored by the system. | 30
Ring Group Members |
Member Index | System-generated, protected field. Indicates the number of the member within the group. A station may appear in more than one group. |
Number | Enter the directory numbers belonging to the ring group. See Ring Groups Conditions for valid numbers and the maximum members allowed per group. NOTE: It is strongly recommended that you do not program a Remote Directory Number (RDN) as the prime member if the Message Waiting Indication and Call History are required for the ring group. | Blank
Presence | Select whether the member is available (Present) or unavailable (Absent) to receive calls to its ring group. See Group Presence for more information. | Present
Name | System-generated, protected field indicating the name corresponding to the directory number, as entered in the Telephone Directory form. If no name exists for the associated directory number the field is blank. |
Home Element | System-generated, protected field that displays the name of the home (primary) element of the ring group member. |
Secondary Element | System-generated, protected field. If a ring group member is resilient, this field displays the name of the member's secondary (backup) controller. |