Product Listing
Multi-Line Hunting - V12.0
Product Description
Multi-Line Hunting is a line side hunting feature arranged by assigning a Hunt Group Number (HML) to a group of lines and a Terminal Number (TER) to each line in the hunt group. Terminal Numbers (TERs) are assigned to each of the lines in ascending consecutive order.
Multi-Line Hunting starts with the dialed number and tests for busy on each line/TER in ascending consecutive terminal number order. The call rings on the first idle line/TER that is found. Hunting continues until either an idle line/TER is found or the end of the list is reached. If no idle line/TER is found, a busy tone is returned to the caller.
End-users will experience downtime when the following hunting activity takes place:
- Change from Multi-Line Hunting to Series Hunting
- Change from Series Hunting to Multi-Line Hunting
- Changing the Multi-Line Hunt group number
- When lines/TERs are removed from the hunt group, other than the last line.
End-users must be made aware of the downtime and can be coordinated with CenturyLink. For assistance with scheduling down time contact your CenturyLink Service Manager.
In addition to scheduling down time when it is most convenient for the end-user, you may need to coordinate the installation of new lines with the party responsible for the end-user's Customer Provided Equipment (CPE) e.g., A CPE vendor or electrician, or the end-user's operations department.
Information on coordinating installation can be found in the Provisioning and Installation Overview. If the installation is not coordinated, the new line(s) may be activated without being wired to the telephone sets. If the lines are not connected to the telephone sets, the lines will hunt but the caller will get a "ring no answer" condition.
Additional information on coordinating installation can be found in the Provisioning and Installation Overview.
Multi-Line Hunting lines/TERs cannot be mixed in the same hunt group as Series Hunting lines. Multi-Line Hunting between Business and Residence lines is not allowed.
Anytime lines/TERs (with the exception of the last line in the hunt group) are removed from the Multi-Line Hunt group, all lines/TERs after the one(s) being removed must be renumbered. Failure to do so will cause the hunting to stop at the last line/TER number before the one removed.
Multi-Line Hunting provides the following options:
- Circular Multi-Line Hunting starts with the dialed telephone number and tests for busy on each line in a prearranged order. When the end of the hunt group is reached, hunting will continue to the first line of the hunt group and hunt until the line just preceding the dialed telephone number. Circular Multi-Line Hunting is utilized best when calls are made to subsequent hunting telephone numbers assigned to terminals in the hunt group. If calls will always be placed to the main number of the hunt group, Circular Hunting- Multi-Line will not be of any advantage to the end-user, unless they have a Uniform Call Distribution (UCD)/Automatic Call Distribution (ACD) or another arrangement, which requires Circular Hunting.
- Group Make Busy allows the end-user to temporarily make all the lines appear busy. When a call comes in on any of the lines in the hunt group with Group Make Busy the caller will receive a busy signal. Group Make Busy is not available with UNE-P or UBS products.
- Random Make Busy provides the end-user the ability to exclude a line/TER or group of lines/TERs from the hunt sequence temporarily using a key or switch (Customer Provided Equipment (CPE)). When an incoming call reaches a line/TER with Random Make Set Busy the call will skip to the next line in the hunt sequence until an idle line is found or the call will reach the end of the hunt sequence and the caller will receive a busy signal. To exclude all lines/TERs in a Multi-Line Hunting sequence see Group Make Busy. Random Make Busy is not available with UNE-P or UBS products.
The following table identifies the total number of arrangements allowed per Multi-Line Hunt group and the total number of lines/TERs Random Make Busy can control:
| Switch Type | Total arrangements allowed | Total number of TERs excluded from hunt sequence |
| 5ESS® | 32 | 32 |
| DMS™-10 | 1 per group | 256 |
| DMS-100 | 1 per TER | 256 |
| Ericsson | 1 per TER | 99 |
- Stop Hunt allows the end-user to temporarily complete the hunt sequence on a specified line before reaching
the end of the original hunt sequence. When the call reaches the specified line in the hunt group before
finishing the original hunt sequence the caller will hear a busy signal. Stop Hunt is not available with
UNE-P or UBS products.
- Uniform Call Distribution provides a method of distributing calls to lines/TERs in a systematic manner. Contact your CenturyLink Service Manager for more information.
The following services require Multi-Line Hunting:
- Automatic Call Distribution (ACD)
- DMS-10 - Hunt groups (AZ, CO, ID, MT, NM, UT, WY only)
- Multiple Position Hunt
- Non-Hunting Telephone Numbers
- Private Branch Exchange (PBX) Trunks
- Series Hunt groups at line limitations
- Stop Hunt arrangements in all switch types except DMS-10 and DMS-100
- Uniform Call Distribution (UCD)
The following provides the maximum number of TERs allowed in a Multi-Line Hunt group, based on the switch type:
| If the switch type is..... | Then the maximum number of lines in a Multi-Line Hunt Group would be..... |
| 5ESS | 2016 |
| DMS-10 | 256 |
| DMS-100 | 256 |
| Ericsson | 100 |
The numbering range for terminals (TER) and Multi-Line Hunt Groups (HML) are as follows:
| If the switch type is... | Then the TERs are numbered between.... | And the HML group is numbered between... | Out-Only TERs are numbered between.... |
| 5ESS | 1-2016 | 1-2000 | 3001-3999 |
| DMS-10 | 0-255 | 0-511 | Cannot be in hunting |
| DMS-100 | 0-255 | 0-4000 | Set up a separate Multi-Line Hunt Group |
| Ericsson | 1-100 | 1-9999 | 3001-3999 |
Availability
Circular Multi-Line Hunting, Multi-Line Hunting and Random Make Busy is available in the following CO switch types:
- 5ESS/5RSM
- DMS-10 (AZ, CO, ID, MT, NM, UT, WY Only)
- DMS-100
- Ericsson
Group Make Busy is only available in 5ESS and Ericsson CO switch types.
Additional information can be found in the Pre-Ordering Overview.
Compatibility & Restrictions
Multi-Line Hunting:
| Feature/Service | Rules/Restrictions |
| Anonymous Call Rejection | Is not compatible with Multi-Line Hunting arrangements. |
| Call Forwarding Busy Line Expanded | Is available in RSS, 5ESS, 5RSM, DMS-100 switch types.
On Multi-Line Hunting lines, Call Forwarding Busy Line Expanded is programmed as a group feature. This means that when all lines/TERs of the Multi-Line Hunt group are busy, the call will forward to the Call Forwarding Number. Call Forwarding Busy Line Expanded should only be installed on the first line/TER of a Multi-Line Hunt group. |
| Call Forwarding Busy Line Intraoffice | Is compatible in RSS, 5ESS, 5RSM, DMS-100 switch types.
On Multi-Line Hunting lines, Call Forwarding Busy Line Intraoffice is programmed as a group feature in switch types that allow Call Forwarding Busy Line Intraoffice. This means that when all lines/TERs of the Multi-Line Hunt group are busy, the call will be forwarded to the Call Forwarding Number. Call Forwarding Busy Line Intraoffice should only be installed on the first line/TER of a multi-line hunt group. |
| Call Forwarding Don't Answer Expanded | Is available in 5ESS, 5RSM, DMS-100 switch types.
On Multi-Line Hunting lines, Call Forwarding Don't Answer Expanded is programmed as a group feature. This means that when an idle line/TER is found, the incoming call will be forwarded if the call is not answered within the preset ringing cycle. In DMS-100 switch types, Call Forwarding Don't Answer Expanded should only be installed on the first line/TER of a Multi-Line Hunt group. In 5ESS, 5RSM switch types, Call Forwarding Don't Answer Expanded can be installed on any line/TER of a Multi-Line Hunt group. Call Forwarding Don't Answer Expanded only applies to the line/TER to which it has been programmed. |
| Call Forwarding Don't Answer Intraoffice | Is compatible in RSS, 5ESS, 5RSM, DMS-100 switch types.
In DMS-100 switch types, Call Forwarding Don't Answer Intraoffice should only be installed on the first line/TER of a Multi-Line Hunt group. In 5ESS, 5RSM switch types, Call Forwarding Don't Answer Intraoffice can be installed on any line/TER of a Multi-Line Hunt group. Call Forwarding Don't Answer Intraoffice applies only to the line/TER to which it has been programmed. |
| Call Forwarding Variable | Call Forwarding Variable may only be installed on the first line/TER of a Multi-Line Hunt group. When Call Forwarding Variable has been activated, only calls to the lead number of the Multi-Line Hunt group will forward. Calls placed directly to "hunting" or "non-hunting" telephone numbers (NHN) in the hunt group will not forward. Exception: In 5ESS, 5RSM switch types, calls to any number in a Multi-Line Hunt group (except non-hunt numbers) will forward when Call Forwarding Variable is activated. |
| Call Rejection | Is only compatible on the first line/TER of a Multi-Line Hunt group.
Incoming calls from numbers on the Call Rejection list will not activate multi-line hunt. |
| Call Transfer | Is available in 5ESS, 5RSM, DMS-100, Ericsson switch types.
Call Transfer must be installed on all lines of a Multi-Line Hunt arrangement. If an end-user requests Speed Calling and Call Transfer on lines in a Multi-Line Hunt group, it must be provided using Centron 1. |
| Call Waiting | Is not compatible with Multi-Line Hunting. |
| Caller ID | May be installed on any line/TER of a Multi-Line Hunt group.
Is only compatible on the first line/TER of a Multi-Line Hunt group. Incoming calls from numbers on the Call Rejection list will not activate Multi-Line hunt. If the incoming call "hunts" to any line/TER which is equipped with Caller ID, then the calling party's name and/or number will be displayed. |
| Continuous Redial | Is compatible with any line/TER of a Multi-Line Hunt group. |
| Custom Ringing Service | Is not compatible with any line/TER of a Multi-Line Hunt group. |
| Dual Service | Is available to end-users with hunting as long as the hunt sequence is identical at the From and To locations. Exception: In Jackson, WY and Durango, CO hunting is not available regardless of whether the sequence is identical or not. |
| Intracall®/Home Intercom | Is not compatible with Multi-Line Hunting. |
| Priority Call | Is only compatible on the first line/TER of a Multi-Line Hunt group. |
| Remote Access Forwarding | Is compatible on either:
Is not compatible on "hunting" telephone numbers assigned to subsequent lines/TERs in the hunt group.When Remote Access Forwarding is activated, the Remote Access Forwarding overrides Multi-Line Hunting and calls will forward to the Call Forwarding Number location. |
| Scheduled Forwarding | Is not compatible on either:
Scheduled Forwarding is not compatible on "hunting" telephone numbers assigned to subsequent lines/TERs in the hunt group. When Scheduled Forwarding is activated, the Scheduled Forwarding overrides Multi-Line Hunting and calls will forward to the Call Forwarding Number location. |
| Selective Call Forwarding | Is only compatible on the first line/TER of a Multi-Line Hunt group. |
Information regarding these features is available in the product specific PCAT.
| Products | Rules/Restrictions |
| Centrex Plus, Centrex 21 and Centron | Hunting is only allowed within the assigned common block. |
| Centron 1, Centraflex, Customized Call Management Services (CCMS) | Hunting is only allowed within the assigned common block. |
All Multi-Line Hunting rules and restrictions apply to Circular, Random Make Busy and Stop Hunt Multi-Line hunting.
The following table identifies additional restrictions:
| Multi-Line Hunting Types | Rules/Restrictions |
| Circular Multi-Line Hunting | Call Forward Busy Line is not compatible with Multi-Line Hunt groups that have Circular Hunting. |
| Group Make Busy | Not available with UNE-P or UBS. Limited to one Group Make Busy per Multi-Line hunt group. In a Multi-Line hunt group with Group Make Busy cannot have Stop Hunt or Random Make Busy on the same hunt group. |
| Random Make Busy - Multi-Line Hunting | Not available with UNE-P or UBS. Random Make Busy can busy out more than one line. One Random Make Busy can be used for a group of lines that is to be made busy at the same time. If lines are to be made busy at different times, a Random Make Busy is required for each line or group of lines to be operated independently. You can have more than 10 Random Make Busy offerings per hunt group with additional equipment. Each Random Make Busy after the first 10 can only control 20 terminals. |
| Stop Hunt | Not available with UNE-P or UBS. In a DMS-100 customers with Stop Hunt cannot have Random Make Busy or Group Make Busy on the same hunt group, and when the hunt group has more than one Stop Hunt arrangement, on the Stop Hunt arrangement that has been most recently activated is in effect. In an Ericsson switch you cannot have Stop Hunt and Circular Hunting in the same Multi-Line Hunt group. |
Pricing
Rate Structure
Multi-Line Hunting may have a recurring and a nonrecurring charge based on state specific Tariffs/Catalogs/Price Lists.
Rates
Retail rates for this feature can be found in the state specific Tariffs/Catalogs/Price Lists.
Rates and/or discounts are available in Exhibit A or the specific rate sheet in your Interconnection or Resale Agreement.
Optional Features
Traffic Data Report Service (TDRS) provides customers with a summary of traffic data on certain network facilities. For additional information contact your CenturyLink Service Manager.
Ordering
Ordering Rules
Additional information on ordering can be found in the Ordering
Overview.
For LSRs submitted with either ACT = V - Conversion as Specified/DL or Z - Conversion as Specified/no
DL, the only valid HA is N - New and will define the end state of hunting when the conversion is complete.
To remove existing hunting during a conversion, omit hunting USOCs from the product-specific form and
do not submit an HGI form.
CenturyLink will provision the hunt sequence provided on the Hunt Group Information (HGI) form, whether it
is new, existing or changed, and will remove all other hunting from the account.
Feature Activity Types (Action Codes)
The valid Feature Activity Types are:
- D = Disconnect
- N = Add
When ordering hunting you must complete the Hunt Group Information Section on the LSR form and the following product specific form:
CCMS, Centraflex, Centron 1, PBX and POTS: The Service Details Section on the RS form
Centrex 21, Centrex Plus, Centrex Prime and Centron: The Station Details Section on the CRS form
UBS Analog Switch Port: The Service Details Section on the PS form
Information on filling out the form can be found in the Local Service Ordering Guidelines (LSOG).
Feature Codes (USOCs)
| Circular Multi-Line Hunting | Group Make Busy- Series Hunting | Multi-Line Hunting | Random Make Busy- Series Hunting* | Stop Hunt-Series Hunting* | |
| CCMS | EH6 - ID-N, ND and OR HCKPG - AZ, IA, ID-S, MN, NM, OR, SD, UT, WA, and WY USOC not required in CO, MT, NE |
Not Available | HTG - AZ, CO, IA, ID-S, MN, MT, ND, NE, NM, SD, UT, and WY HSHPG (per hunt group) and HSHPT (per terminal in the group) -ID-N, OR, WA |
Not Available | Not Available |
| Centraflex | EH6 - ID-N, OR HCKPG - WA |
Not Available | HSHPG (per hunt group) and HSHPT (per terminal in the group) -ID-N, OR, WA | Not Available | Not Available |
| Centrex 21 | USOC not required | EHC - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
USOC not required | EHD - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
P89 - AZ, IA, ID-N, ID-S, MN, NE, ND, OR, SD, WA, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
| Centrex Plus | USOC not required | EHC - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
USOC not required | EHD - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
P89 - AZ, IA, ID-N, ID-S, MN, NE, ND, OR, SD, WA, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
| Centrex Prime | USOC not required | EHC - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
USOC not required | EHD - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
P89 - AZ, IA, ID-N, ID-S, MN, NE, ND, OR, SD, WA, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
| Centron | USOC not required | EHC - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
USOC not required | EHD - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
P89 - AZ, IA, ID-N, ID-S, MN, NE, ND, OR, SD, WA, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
| Centron 1 | Not Available | Not Available | HTG - AZ, CO, IA, ID-S, MN, MT, ND, NE, NM, SD, UT, and WY HSHPG (per hunt group) and HSHPT (per terminal in the group) -ID-N, OR, WA |
Not Available | Not Available |
| PBX | EH6 - ID-N, ND and OR HCKPG in AZ, IA, ID-S, MN, NM, OR, SD, UT, WA, and WY USOC not required in CO, MT, NE |
EHC - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
HTG - AZ, CO, IA, ID-S, MN, MT, ND, NE, NM, SD, UT, and WY HSHPG (per hunt group) and HSHPT (per terminal in the group) -ID-N, OR, WA |
EHD - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
P89 - AZ, IA, ID-N, ID-S, MN, NE, ND, OR, SD, WA, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
| POTS | EH6 - ID-N, ND and OR HCKPG - AZ, IA, ID-S, MN, NM, OR, SD, UT, WA, and WY USOC not required in CO, MT, NE |
EHC - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
HTG - AZ, CO, IA, ID-S, MN, MT, ND, NE, NM, SD, UT, and WY HSHPG (per hunt group) and HSHPT (per terminal in the group) -ID-N, OR, WA |
EHD - ID-N, OR, WA P89 - AZ, IA, ID-S, MN, NE, ND, SD, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
P89 - AZ, IA, ID-N, ID-S, MN, NE, ND, OR, SD, WA, WY PHY- CO, MT, NM, UT BRR- MN for 11-20 lines BRA - MN for 21-30 lines |
| UBS- Analog Line Side Port | EH6 - ID-N, ND and OR HCKPG in AZ, IA, ID-S, MN, NM, OR, SD, UT, WA, and WY USOC not required in CO, MT, NE |
Not Available | HTG - AZ, CO, IA, ID-S, MN, MT, ND, NE, NM, SD, UT, and WY HSHPG (per hunt group) and HSHPT (per terminal in the group) -ID-N, OR, WA |
Not Available | Not Available |
Group Make Busy, Random Make Busy and Stop Hunt are not available with UNE-P or UBS products.
| *Additional Feature Codes (USOCs) Required for Random Make Busy/Stop Hunt | ||
| States Applicable | Random Make Busy/Stop Hunt USOC | Additional USOCs required |
| ND, NE, SD | P89 | 1DC2X, PCWWX |
| IA, MN | P89 | TUSFX, PCWWX |
| ID-N | EHD- Random Make Busy P89 - Stop Hunt |
1LXBJ |
| WA | EHD- Random Make Busy P89 - Stop Hunt |
1D92X, PCWSX |
| OR | EHD- Random Make Busy P89 - Stop Hunt |
1DC2X, PCWWX |
| AZ, ID-S, MT, WY | PHY- Random Make Busy P89, PHY- Stop Hunt |
1DC2X, PCWSX |
| UT | PHY- Random Make Busy P89, PHY- Stop Hunt |
1DC2X, PCWSX, PMWAX |
| CO, NM | PHY | X2KBX, FQTX1, CHBN2 |
| State | Multi-line USOC | Apply To | |
| All lines in hunt group | Each line that hunts to another line | ||
| AZ | HTG | X | |
| CO | HTG | X | |
| IA* | HTG | X* | |
| ID-N | HSHPT | X | |
| ID-S | HTG | X | |
| MN* | HTG | X* | |
| MT | HTG | X | |
| ND | HTG | X | |
| NE | HTG | X | |
| NM | HTG | X | |
| OR | HSHPT | X | |
| SD | HTG | X | |
| UT | HTG | X | |
| WA | HSHPT | X | |
| WY | HTG | X | |
*In IA and MN the HTG Multi-Line Hunting USOC applies to all lines except the last line in the hunt group, except when in a DMS-10 or DMS-100 CO switch and the hunt group is using Out Directory Number (ODN) to establish overflow.
Feature Detail (FID and Data Requirements)
When adding or removing any type of Multi-Line Hunting on new or existing accounts other than during Conversion activity, you must include the appropriate Multi-Line Hunting USOC (HTG or HSHPG and HSHPT) along with the appropriate USOC for the desired Multi-Line hunting type from the Feature Codes table. For information regarding the removal of Multi-Line Hunting during a Conversion, refer to Ordering Rules.
Adding Multi-Line Hunting
- Feature Activity Type N and USOC(s) HTG or HSHPG and HSHPT.
Removing Multi-line Hunting
This feature is removed by including:
- Feature Activity Type D and USOC(s) HTG or HSHPG and HSHPT
Adding Circular, Group Make Busy, Random Make Busy, and Stop Hunt - Multi-Line Hunting
The feature is ordered by including:
- Feature Activity Type N and the appropriate USOC(s) from the Feature Codes Tables.
Removing Circular, Group Make Busy, Random Make Busy, and Stop Hunt - Multi-Line Hunting
This feature is removed by including:
- Feature Activity Type D and the appropriate USOC(s)
When changing, converting or removing an existing hunt group the hunt group identifier must be entered in the HID field located on the HGI form. Hunt groups are assigned a one to four alphanumeric character code (0001 through 9999 or 0001A through 9999A) as the hunt group identifier. This hunt group identifier can be found on the Customer Service Record (CSR) behind the HML FID.
NOTE: On CSRs with hunting in AZ, CO, ID-S, MT, NM, UT and WY, the action codes used for the left-hand subsequent order activity will show an additional alpha character being added or removed with the left-hand HML entry when there is activity on the HML entry. For example, if the existing CSR shows HML 0001 when subsequent order activity occurs the entry will show HML 0001A, then for the next order activity the entry will show HML 0001 again. If the hunt group identifier is five characters, include an entry of 'Y' in the MANUAL IND field of the LSR and in REMARKS field of the LSR include the five character hunt group identifier, e.g., HID is 1234A.
Last Update: March 23, 2015
Last Reviewed: October 16, 2023