In Cisco Unified Communications Manager Administration, use the Call Routing > Route/Hunt > Line Group menu path to configure line groups.
A line group allows you to designate the order in which directory numbers are chosen. Cisco Unified Communications Manager distributes a call to idle or available members of a line group based on a call distribution algorithm and on the Ring No Answer Reversion (RNAR) Timeout setting.
Note
Users cannot pick up calls to a DN that belongs to a line group by using the Directed Call Pickup feature.
Tip
Although you can configure an empty line group with no members (directory numbers), Cisco Unified Communications Manager does not support this configuration for routing calls. If the line group contains no members, the hunt list stops hunting when the call gets routed to the empty line group. To avoid this situation, make sure that you configure at least one member in the line group.
Line group configuration tips
You must define one or more directory numbers before configuring a line group.
After you configure or update a line group, you can add or remove members from that line group.
You cannot delete a line group that one or more route/hunt lists references. To find out which hunt lists are using the line group, in the Line Group Configuration window, choose Dependency Records from the Related Links drop-down list box and click Go. If the dependency records are not enabled for the system, the Dependency Records Summary window displays a message. If you try to delete a line group that is in use, Cisco Unified Communications Manager displays an error message. Before deleting a line group that is currently in use, you must perform the following task:
Remove the line group from all hunt lists to which it belongs before deleting the line group.
Tip
To delete line groups and hunt pilots; first, delete the hunt pilot; second, delete the hunt list; and finally, delete the line group.
The following table describes the line group settings.
Table 1 Line group settings
Field
Description
Line Group Information
Line Group Name
Enter a name for this line group. The name can comprise up to
50 alphanumeric characters and can contain any combination of spaces, periods
(.), hyphens (-), and underscore characters (_). Ensure that each line group
name is unique to the route plan.
Timesaver
Use concise and descriptive names for your line groups. The
CompanynameLocationGroup format usually provides a sufficient level of detail
and is short enough to enable you to quickly and easily identify a line group.
For example, CiscoDallasAA1 identifies a Cisco Access Analog line group for the
Cisco office in Dallas.
RNA Reversion Timeout
Enter a time, in seconds, after which Cisco Unified CM will
distribute a call to the next available or idle member of this line group or to
the next line group if the call is not answered and if the first hunt option,
Try next member; then, try next group in Hunt List, is chosen. The RNA
Reversion Timeout applies at the line-group level to all members.
Distribution Algorithm
Choose a distribution algorithm, which applies at the
line-group level, from the options in the drop-down list box:
Top Down—If you
choose this distribution algorithm, Cisco Unified CM distributes a call to idle
or available members starting from the first idle or available member of a line
group to the last idle or available member.
Circular—If you
choose this distribution algorithm, Cisco Unified CM distributes a call to idle
or available members starting from the (n+1)th member of a route group, where
the nth member is the next sequential member in the list who is either idle or
busy but not
"down." If the nth member is the last member of a route
group, Cisco Unified CM distributes a call starting from the top of the route
group.
Longest Idle
Time—If you choose this distribution algorithm, Cisco Unified CM only
distributes a call to idle members, starting from the longest idle member to
the least idle member of a line group.
Broadcast—If you
choose this distribution algorithm, Cisco Unified CM distributes a call to all
idle or available members of a line group simultaneously. See the Note in the
description of the Selected DN/Route Partition field for additional limitations
in using the Broadcast distribution algorithm.
The default value specifies Longest Idle Time.
Hunt Options
No Answer
For a given distribution algorithm, choose a hunt option for
Cisco Unified CM to use if a call is distributed to a member of a line group
that does not answer. This option gets applied at the member level. Choose from
the options in the drop-down list box:
Try next member;
then, try next group in Hunt List—If you choose this hunt option, Cisco Unified
CM distributes a call to idle or available members starting from the first idle
or available member of a line group to the last idle or available member. If
unsuccessful, Cisco Unified CM then tries the next line group in a hunt list.
Try next member,
but do not go to next group—If you choose this hunt option, Cisco Unified CM
distributes a call to idle or available members starting from the first idle or
available member of a line group to the last idle or available member. Cisco
Unified CM stops trying upon reaching the last member of the current line
group.
Skip remaining
members, and go directly to next group—If you choose this hunt option, Cisco
Unified CM skips the remaining members of this line group when the RNA
reversion timeout value elapses for the first member. Cisco Unified CM then
proceeds directly to the next line group in a hunt list.
Stop hunting—If
you choose this hunt option, Cisco Unified CM stops hunting after trying to
distribute a call to the first member of this line group and the member does
not answer the call.
Busy
For a given distribution algorithm, choose a hunt option for
Cisco Unified CM to use if a call is distributed to a member of a line group
that is busy. Choose from the options in the drop-down list box:
Try next member;
then, try next group in Hunt List—If you choose this hunt option, Cisco Unified
CM distributes a call to idle or available members starting from the first idle
or available member of a line group to the last idle or available member. If
unsuccessful, Cisco Unified CM then tries the next line group in a hunt list.
Try next member,
but do not go to next group—If you choose this hunt option, Cisco Unified CM
distributes a call to idle or available members starting from the first idle or
available member of a line group to the last idle or available member. Cisco
Unified CM stops trying upon reaching the last member of the current line
group.
Skip remaining
members, and go directly to next group—If you choose this hunt option, Cisco
Unified CM skips the remaining members of this line group upon encountering a
busy member. Cisco Unified CM proceeds directly to the next line group in a
hunt list.
Stop hunting—If
you choose this hunt option, Cisco Unified CM stops hunting after trying to
distribute a call to the first busy member of this line group.
Not Available
For a given distribution algorithm, choose a hunt option for
Cisco Unified CM to use if a call is distributed to a member of a line group
that is not available. The Not Available condition occurs when none of the
phones that are associated with the DN in question is registered. Not Available
also occurs when extension mobility is in use and the DN/user is not logged in.
Choose from the options in the drop-down list box:
Try next member;
then, try next group in Hunt List—If you choose this hunt option, Cisco Unified
CM distributes a call to idle or available members starting from the first idle
or available member of a line group to the last idle or available member. If
unsuccessful,
Cisco Unified Communications Manager then tries the
next line group in a hunt list.
Try next member,
but do not go to next group—If you choose this hunt option, Cisco Unified CM
distributes a call to idle or available members starting from the first idle or
available member of a line group to the last idle or available member. Cisco
Unified CM stops trying upon reaching the last member of the current line
group.
Skip remaining
members, and go directly to next group—If you choose this hunt option, Cisco
Unified CM skips the remaining members of this line group upon encountering the
first unavailable member. Cisco Unified CM proceeds directly to the next line
group in a hunt list.
Stop hunting—If
you choose this hunt option, Cisco Unified CM stops hunting after trying to
distribute a call to the first unavailable member of this line group.
Line Group Member Information
Find Directory Numbers to Add to Line Group
Partition
Choose a route partition for this line group from the
drop-down list box. The default value specifies <None>.
If you click Find, the Available DN/Route Partition list box
displays all DNs that belong to the chosen partition.
Directory Number Contains
Enter the character(s) that are found in the directory number
that you are seeking and click the Find button. Directory numbers that match
the character(s) that you entered display in the Available DN/Route Partition
box.
Available DN/Route Partition
Choose a directory number in the Available DN/Route Partition
list box and add it to the Selected DN/Route Partition list box by clicking Add
to Line Group.
Current Line Group Members
Selected DN/Route Partition
To change the priority of a directory number, choose a
directory number in the Selected DN/Route Partition list box. Move the
directory number up or down in the list by clicking the arrows on the right
side of the list box.
To reverse the priority order of the directory numbers in the
Selected DN/Route Partition list box, click Reverse Order of Selected DNs/Route
Partitions.
For more information about the order of directory numbers in a
line group, see topics related to route plans in the
Cisco Unified Communications Manager System Guide.
Note
Do not put DNs that are shared lines in a line group that
uses the Broadcast distribution algorithm. Cisco Unified CM cannot display all
DNs that are shared lines on devices where the DNs are configured as shared
lines if the DNs are members of a line group that uses the Broadcast
distribution algorithm.
Removed DN/Route Partition
Choose a directory number in the Selected DN/Route Partition
list box and add it to the Removed DN/Route Partition list box by clicking the
down arrow between the two list boxes.
Directory Numbers
(list of DNs that currently belong to this line group)
Click a directory number in this list to go to the Directory
Number Configuration window for the specified directory number.
Note
When you are adding a new line group, this list does not
display until you save the line group.
Related Information
Add members to line group
You can add members to a new line group or to an existing line group. The following procedure describes adding a member to an existing line group.
Before You Begin
You must define one or more directory numbers before performing this procedure.
Procedure
Step 1
Choose Call Routing > Route/Hunt > Line Group.
Step 2
Locate the line group to which you want to add a member.
Step 3
If you need to locate a directory number, choose a route partition from the Partition drop-down list box, enter a search string in the Directory Number Contains field, and click Find. To find all directory numbers that belong to a partition, leave the Directory Number Contains field blank and click Find.
A list of matching directory numbers displays in the Available DN/Route Partition list box.
Step 4
In the Available DN/Route Partition list box, choose a directory number to add and click Add to Line Group to move it to the Selected DN/Route Partition list box. Repeat this step for each member that you want to add to this line group.
Step 5
In the Selected DN/Route Partition list box, choose the order in which the new directory number(s) is to be accessed in this line group. To change the order, click a directory number and use the Up and Down arrows to the right of the list box to change the order of directory numbers.
Step 6
Click Save to add the new directory numbers and to update the directory number order for this line group.
Related Information
Remove members from line group
You can remove members from a new line group or from an existing line group. The following procedure describes removing a directory number from an existing line group.
Procedure
Step 1
Choose Call Routing > Route/Hunt > Line Group.
Step 2
Locate the line group from which you want to remove a directory number.
Step 3
In the Selected DN/Route Partition list box, choose a directory number to be deleted and click the down arrow below the list box to move the directory number to the Removed DN/Route Partition list box. Repeat this step for each member that you want to remove from this line group.
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