Wireless Type 2 Interconnection Service (Type 2) - V32.0
Wireless Type 2 Interconnection Service (Type 2) is a finished service for Wireless and Paging. It is an interconnection between your Point of Interface (POI) and the CenturyLink Public Switched Telephone Network (PSTN). The POI is the physical demarcation between your network and the CenturyLink PSTN that defines where one party's network responsibility ends and the other party's begins. Because Type 2 is a finished service, CenturyLink provisions all connections necessary for complete connectivity between your POI and a CenturyLink terminating tandem or end office. Some Interconnection Agreements call for a POI in each wireline LCA (Local Calling Area). Your POI must be located within a CenturyLink ILEC wire center boundary. The terms and conditions for Type 2 Interconnection Service may vary by individual Interconnection Agreement. The information in this document describes the terms and conditions of a typical Wireless and Paging agreement with CenturyLink.
Wireless Type 2 Interconnection Service (Type 2) provides routing of traffic between your end-user and CenturyLink's end-user. The type of traffic carried on a Type 2 trunk group is dependent upon CenturyLink's requirements provided in your interconnection agreement and your service objectives for your end-users.
Wireless Type 2 Interconnection Service (Type 2) requires the assignment of Numbering Plan Area (NPA) NXX (10 K block) or NPA NXX X (1K block) block of numbers from NeuStar, a division of Lockheed Martin to you. These numbers are to be requested for the CenturyLink Rate Center.
The following subject areas provide an overview of Type 2:
- Methods of Interconnection
- Facility Levels
- Single Point of Presence (SPOP)
- Signaling Requirements
Methods of Interconnection
The method of interconnection is the physical path between the WSP POI and the nearest CenturyLink Serving Wire Center (SWC). The following are the four methods of interconnection available:
- Entrance Facility
- Mid-Span Meet POI
- BFR (Bona Fide Request) Process
CenturyLink provides the facility between the POI and the CenturyLink SWC. An entrance facility will not extend beyond the CenturyLink wire center boundary of the SWC.
CenturyLink offers both Physical and Virtual Collocation options. The collocation is your POI. For more information see Wireless Service Providers (WSP) - Collocation - General Information.
- Physical Collocation extends your facilities into the CenturyLink SWC and creates a physical presence there.
- Virtual Collocation extends your facilities into the CenturyLink SWC, without physical access to the SWC.
Mid-Span Meet POI
Using the Mid-Span Meet POI interconnection option, CenturyLink and the WSP negotiate a location for the POI within the SWC boundary of the CenturyLink switch. Both parties agree to build to this point and both accept responsibility for the network on their side of the POI. Generally, CenturyLink will only build to 50 percent of the distance between the building that houses your equipment and the CenturyLink SWC. A mid-span meet POI will not extend beyond the area served by the CenturyLink SWC. When ordering Mid-Span Meet POI the ASR must have the SPEC Code, which is MSMEETP. Mid-Span Meet POI information is described in the Mid-Span Meet POI download.
Bona Fide Request (BFR)
While the 3 methods above are the most common, other technically feasible methods of interconnection can be requested via a Bona Fide Request (BFR).
In addition to the physical path between your POI and the nearest CenturyLink SWC, you must order trunking from your POI to a CenturyLink Tandem, or EO (End Office) Switch(es). Unless specifically stated otherwise in the interconnection agreement, you must have a separate trunk group for each type of traffic; local, non-local and ancillary.
Direct Trunked Transport (DTT)
Direct Trunked Transport between the CenturyLink SWC of your POI and a CenturyLink Switch allows for termination of calls destined for end-users with NXXs associated with that CenturyLink EO Switch. Direct Trunked Transport between the CenturyLink SWC of your POI and a CenturyLink tandem allows for termination of calls destined for end-users with NXXs associated with switches that subtend that tandem. If Direct Trunked Transport is greater than 50 miles in length between the CenturyLink SWC of your POI and the requested CenturyLink Switch, and existing facilities are not available in either CenturyLink's or your network, parties may be jointly responsible for construction and cost of the requested facilities. CenturyLink may use a "LATA Infrastructure Mileage Initial Transport (LIMIT)" process to coordinate this form of interconnection per the terms and conditions of your Interconnection Agreement or Amendment.
For more information, download LATA Infrastructure Mileage Initial Transport (LIMIT).
Wholesale customers can utilize CenturyLink's behind-the-tandem infrastructure to exchange traffic with the Local and/or Access Tandem's subtending End Offices serving the CenturyLink end user customers involved in the calls. Unless SPOP trunking (see below) is requested, you must establish a POI in every LCA (Local Calling Area) and establish 2A, 2B and/or 2D trunking (see below) to each access tandem and/or local tandem covering the localities in which you are doing business. This trunking can involve either direct-final (full) or alternate-final (overflow) call routing. This is described further below.
Type 2A Local Tandem Trunk Groups:
- Requested when a local calling area (LCA) is served by a local tandem
- Provides for mutual exchange of Local/Extended Area Service traffic
- Provides overflow as an Alternate Final (AF) route
- Enables termination of traffic to (or receipt of traffic from) every end office that subtends the local tandem.
- Local trunk groups can receive overflow from Type 2B end office connections.
Type 2B Local End Office Trunk Groups
Two categories of Type 2B local trunk groups are available:
- 2B Direct Final (Full Use)
- 2B Overflow (High Use)
2B Direct Final (Full):
- Trunking to EOs not subtending any local tandem
- Full trunks groups are required to every CenturyLink end office within the LCA.
- No overflow capability as a Direct Final (DF) route
2B Overflow (High Use)
- Required when traffic routed through a local tandem to a subtending EO reaches 512 Centum Call Seconds (CCS) of average busy hour volume.
- Overflows to a Type 2A local tandem trunk group, during busy periods.
- May be required in addition to trunking to the access tandem, when WSP is using the access tandem for local traffic, when there is no local tandem. This trunk group may be used to overflow traffic to the access tandem.
2A Access Tandem Trunking
- Originate and terminate Exchange Access (non-IXC intraLATA toll), or Jointly-Provided Switched Access).
- Follows the industry standards Multiple Exchange Carrier Ordering and Design (MECOD) and Multiple Exchange Carrier Access Billing (MECAB) for the ordering and billing of Jointly Provided Switched Access services, if you have selected that method with CenturyLink.
- 2A Equal Access: A 1-way terminating trunk group can also be ordered from the Access Tandem to handle mobile to land interexchange IXC traffic, including Jointly Provided Switched Access.
- 2A Equal Access trunking used for traffic to your end user's presubscribed interexchange carrier of choice
- 2A Equal Access trunking for 8XX traffic that requires the WSP to transit a CIC (Carrier Identification Code) and send OZZ++ on each call, via SS7 signaling
2D Ancillary Trunking
- A separate ancillary trunk is required for each service.
- Directory Assistance (DA)*: If CenturyLink provides DA service to your end users, you should request Type 2D trunks to access DA or national DA.
- Operator Services (OS)*: If CenturyLink provides OS to your end users, you must request Type 2D 1-way terminating trunks to the appropriate Operator Services tandem.
- 911/E911*: you must request Type 2D trunks to the 911/E911 tandem in order to provide your end users with 911 service. General 911/E911 activities are described in the Wireless E9-1-1 (W9-1-1) CellTrace and CellTrace Plus.
- 8XX Service: You need to request either Type 2A Equal Access or Type 2D Ancillary trunks.
- Routing of 8XX service on Type 2 Interconnection is dependent upon the availability of a cell pack feature in the CenturyLink end office. Consult your Service Manager for ordering assistance.
|AND WSP service requested is||AND||THEN|
|Nonqueried 8XX Long Distance using SS7 signaling||Cell pack feature IS NOT available||Customer orders MF Incoming to CenturyLink MF TFEA trunks|
|Nonqueried 8XX Long Distance using MF||Cell pack feature is available in requested office
(Contact your Service Manager for assistance.)
|Customer orders EA (Equal Access) incoming to CenturyLink or 2 Way SS7 trunks to the Access Tandem|
End Office with Local Tandem Functionality Trunking (EOWLTF)
To the extent CenturyLink is using a specific EO to deliver limited tandem switching functionality to itself, another WSP, another CLEC or another ILEC; it will arrange the same trunking for you. Trunking may be ordered to CenturyLink EOWLTF to allow:
- Termination of local calls destined for other Telecommunications Carriers' end-users connected to the same EOWLTF and interconnected to the same CenturyLink EOWLTF.
- EOWLTF must be ordered as a direct final two-way trunk group.
- When ordering EOWLTF the ASR must have the SPEC Code, which is WEOWLTF.
- Direct Trunked Transport (DTT) is billed from the SWC to the EOWLTF and Tandem Switched Transport (i.e., Tandem Switching and Tandem Transmission Fixed and Per Mile) applies between the EOWLTF and the terminating EO in addition to the EO Call Termination charges. When a call is terminated to another Telecommunication's Carrier, transit charges will apply.
- Contact your Service Manager for availability of EOWLTF.
All types of trunking arrangements (2B Full, 2B High Use, 2A EA trunks, etc.,) are available in either a 2 way or 1 way direction and the types available are specified in your Interconnection Agreement.
There may be limitations on where 2-way trunking can be provisioned.
Below are the features and benefits of each:
- Carries Originating (land to mobile) and Terminating (mobile to land)
- Most commonly requested trunk type for Type 2 Interconnection service
- Quantities of trunking dependent on numbers of localities served and traffic usage
- Entitles customer to monthly recurring charge credit, based on percentage of land-to-mobile traffic
- Order to DMS100/200 office may have constraints (Contact your Service Manager for assistance)
- Carries terminating (mobile to land), or originating (land to mobile)
- Only trunk type available to Paging providers
- Required in each direction for both originating and terminating traffic (except for Paging providers)
- Type 2 ordered as 1-way originating or 1-way terminating
- CenturyLink will provision 1-way (land to mobile) trunks, if you request 1-way mobile to land trunks (except for Paging providers)
- Customer must order trunks in both directions, in certain instances that your Service Manager will inform you about
- Routing of CenturyLink 1-way trunks (land to mobile) is at CenturyLink's discretion
Single Point of Presence (SPOP) in the LATA allows you to establish as few as a single POI in each LATA, and order trunking to offices in other Local Calling Areas (LCA). This is an alternative to establishing points of interface in each wireline LCA. With SPOP you can deliver Exchange Service (EAS/Local), as well as Exchange Access (IntraLATA Non-Interexchange Carrier (IXC) and Jointly Provided Switched Access (JPSA) (InterLATA and IntraLATA IXC Switched Access (SA)) traffic, at CenturyLink Access Tandem (AT) Switch(es). For the successful routing and completion of transit traffic to your Wireless end users in your SPOP arrangement, a trunk group to CenturyLink’s Local Tandem (LT) will be necessary. An amendment to your Interconnection Agreement may be required before you submit orders for SPOP.
CenturyLink's 512 CCS policies remain in effect for the SPOP trunking option. The Method of Interconnection, Facility Levels and Signaling Requirements described in this PCAT also apply to SPOP.
To terminate traffic to a third party, such as a Competitive or Incumbent Local Exchange Carrier (CLEC or ILEC), or Wireless Service Provider (WSP) that lacks a trunk group to a CenturyLink local or access tandem, you must order the trunking directly from the third party.
You may order a combined trunk group to the CenturyLink AT for the origination and termination of Exchange Access (IntraLATA Non-IXC Toll) and Jointly Provided Switched Access (JPSA). Both parties must follow the industry standards outlined in the Multiple Exchange Carrier Access Billing (MECAB) document for the billing of JPSA.
Digital Signal Levels
The following digital signal levels are available for Type 2:
- DS0 (for ancillary trunks, only)
- Type 2 trunks will always be provisioned on a DS1 at the switch. That DS1 can be multiplexed on a Type 2 DS3 or a Private Line Transport (PLT) DS3 and in some cases on Synchronous Service Transport (SST). Ancillary trunks for Directory Assistance (DA), 911/E911, Operator Services (OS), are ordered in Digital Signal Level 0 (DS0) formats.
Type 2 must be ordered with Common Channel Signaling (CCSAC)/Signaling System 7 (SS7). Operator Services, 911/E911 and, in most cases, Directory Assistance trunk groups must be ordered as multi-frequency (MF). Ancillary trunks used to transport 8XX traffic must also be ordered as MF.
Wireless Type 2 Interconnection Service is available where facilities exist throughout CenturyLink QC.
Terms and Conditions
You must negotiate a Type 2 Interconnection agreement with CenturyLink for any state. CenturyLink offers an interconnection agreement template to begin the negotiations. For details on the terms and conditions, see the Wireless Interconnection Agreement Template. Members of the CenturyLink negotiation team negotiate these agreements. See CenturyLink Wholesale Interconnection Agreement Negotiation Process for more information.
You may adopt an entire approved agreement of another Wireless Service Provider, provided that it is available and current.
All traffic routing requests must follow rules established in the LERG (Local Exchange Routing Guide).
Technical PublicationsTechnical characteristics can be found in the following Telcordia Special Reports (SRs), SR-2275, Notes on the Network.
Network Channel /Network Channel Interface (NC/NCI) codes are described in Technical Publication, CenturyLink Swiched Access - Network Channel (NC) codes and Network Channel Interface (NCI) Codes Combinations, 77203.
Message format references TR-NPL-000258, GR-334-CORE
Ancillary trunking for Wireless service is available according to the generic requirements outlined in Telecordia document GR-1504-CORE.
Interconnect Agreement - When trunking is established and you are ready to send and receive usage, your contract billing language becomes important. There are two different billing arrangements for Exchange Service (EAS/Local) non-transit Minutes Of Use (MOU). They are:
- Reciprocal Compensation - Terminating Party bills for Exchange Service (EAS/Local) calls according to the Interconnection Agreement MOU charges which may include EO Call Termination, Tandem Switching, Tandem Transmission Fixed and Per Mile or Internet Service Providers (ISP) Federal Communications Commission (FCC) ordered rates. CenturyLink will record and bill all minutes of use, and apply a Reciprocal Compensation Credit for any land to mobile traffic, unless the WSP has selected the direct billing option. Your interconnection agreement specifies the conditions required for direct billing.
- Bill and Keep (B&K) - Both Parties provide Exchange Service (EAS/Local) and bill their retail end users.
If a new carrier is entering a new market, CenturyLink enters into a bill and keep arrangement. The criteria used to support bill and keep for existing customers is a relative balance of the traffic between the two companies, based on a traffic study.
Transit - is any traffic that originates from one Telecommunications Carrier's network, transits a Tandem Telecommunications Carrier's network and terminates to yet another Telecommunications Carrier's network. Neither the originating nor the terminating End User Customer is a Customer of a Tandem Telecommunications Carrier.
Billing for transit traffic will be determined by the terms and conditions specified in your Interconnection Agreement. The three billing scenarios for transit traffic billing are provided below.
Local Transit, which is a per MOU rate for transit calls made within Local Calling Areas
IntraLATA Toll Transit, which is a per MOU rate for transit calls made between Local Calling Areas
Transit per MOU rate, which will not differentiate between local and intraLATA toll calling Areas
Intra- InterMTA -MTA is defined as Major Trading Areas, which are geographic boundaries for Wireless Service Providers that determine if a call is rated as local (IntraMTA). An IntraMTA call is defined as a call made between two carriers within the same MTA. Calls between MTAs (interMTA) are non-local; however, CenturyLink is not able to determine the jurisdiction of the InterMTA traffic. You are expected to state what percentage of your traffic will be InterMTA. The InterMTA factor will be applied to all of your usage and that amount of usage will be rated at switched access rates. The percentage of usage remaining will be billed and rated as EAS/local.
A nonrecurring charge applies to the installation of service(s) and in some states a disconnect service(s) charge will apply. If you have an interconnection agreement with CenturyLink, the applicable rates are found in the rate sheet of your Interconnection Agreement. Otherwise you will be billed according to the state-specific rates.
If you contemplate signing an interconnection agreement, the applicable rates pursuant to an interconnection agreement can be found in the state-specific Exhibit A of the Wireless Interconnection Agreement Template.
The following table illustrates facility/trunks rate elements:
Network Access Channel (NAC)
|Expanded Interconnect Channel Termination||X||X|
|Dedicated Transport/Direct Trunk Transport - Fixed and Per Mile||X||X|
The following Usage rate elements apply depending on the types of traffic delivered between CenturyLink and the WSP:
|Types of Traffic|
|Rate Element- Per Minute of Use (MOU)||Local||Non local traffic (interMTA roaming, etc)|
|Tandem Switching||X||CenturyLink FCC Switched Access|
|Tandem Transmission - fixed and per mile||X|
|End Office Call Termination||X||N/A|
|FCC-ordered ISP rate||X|
Transit rates are usage-sensitive and billed according to the scenarios mentioned above.
According to the terms of your Interconnection Agreement, CenturyLink may bill you the FCC approved rate for un-queried 8XX calls, on a per occurrence basis.
Testing associated with repair and standard provisioning is not billable. Additional cooperative acceptance testing, automatic scheduled testing, cooperative scheduled testing, manual scheduled testing and non-scheduled testing are billable. Testing fees, as referenced in your Interconnection Agreement, may apply to you when requesting this type of testing.
Cancellation charges may apply based upon the critical dates, terms and conditions of the CenturyLink Access Service Tariff Section 5.2.3, and the Trunk Nonrecurring Charges referenced in your Interconnection Agreement.
Expedites are allowed only on an exception basis with executive approval within the same timeframes as provided for CenturyLink retail designed services. When expedites are approved, expedite charges may apply if described in your Interconnection Agreement.
Construction charges may apply to you and are described in your Interconnection Agreement.
Additional rate structure information can be found in your Interconnection Agreement.
Tariffs, Regulations and Policy
Tariff, regulations and policies are located in the state specific Tariffs/Catalogs/Price Lists.
|Provides access to a world-class network||Access to a highly reliable, advanced network|
|Offers multiple options for establishing a POI||Flexibility for build-out strategies and schedules|
|Provides tandem routing||Efficient trunking and network usage saves money for everyone using the network|
|Supports transit traffic via tandem switching||Can reach other carriers efficiently. You may not need to connect to other carriers directly where CenturyLink tandems and trucking are present|
See Features and Benefits section.
If you are a new WSP and are ready to do business with CenturyLink, view Getting Started as a Facility-Based WSP. If you are an existing WSP wishing to amend your Interconnection Agreement or Customer Questionnaire, additional information is located in the Interconnection Agreement.
To ensure expediency the following are some of the steps that should be executed prior to requesting service:
- Sign the appropriate, state-specific Type 2 Wireless Interconnection Agreement with CenturyLink
- Determine the local calling area you wish to serve and obtain the appropriate NPA NXXs
- Establish your POI in CenturyLink territory
- Determine your method of interconnection
- Determine use of the appropriate CenturyLink tandem and/or CenturyLink direct End Office routing
Your CenturyLink Account Team will work with you to ensure that you have all the necessary pieces in place before submitting a service request. Contact your Account Team / Sales Executives and Service Managers for further details, or see Getting Started as a Facility-based Wireless Service Provider (WSP).
Wireless interconnection requests for SPOP will be facilitated by your CenturyLink Customer Account Manager or Service Manager. Please request LATA maps from your Customer Account Manager or Service Manager for the locations you intend to use SPOP. Once you fill them out, your LATA maps are reviewed and CenturyLink provides feedback if there are questions or issues on the LATA maps. This cooperation is critically needed. When the LATA maps are final, your Customer Account Manager or Service Manager will contact you to set up a pre-provisioning SPOP meeting..
Joint Forecasting Process
Interconnection Agreements often require that you and CenturyLink participate in joint planning meetings each year, to provide each other trunking forecasts and discuss any network projects planned. Through a Joint Forecasting Process CenturyLink will provide network components in a timely manner to help you develop new solutions for your business. Forecasting expectations are described in the Forecasting.
Type 2 service requests are submitted using the following Access Service Ordering Guidelines (ASOG) forms:
- Access Service Request
- Trunking Request
- Additional Circuit Information
- Translation Questionnaire
Use the appropriate SPEC code for the service you are requesting. (See below SPEC Code Information Section.)
Field entry requirements are described in the Access Service Request (ASR) Forms.
Local Number Portability (LNP) is available on Wireless Interconnection Service (WIS) accounts. LNP information is available in Wireless Local Number Portability (LNP).
A Design Layout Report (DLR) provides you with a description of the facilities and services ordered. It is provided at your request and is intended to assist in designing the overall service. You can choose to view and/or retrieve the DLR information on-line through IMA or have it delivered electronically. Information about requesting DLR's is described in the Ordering Overview.
ASRs for WSP trunking can be submitted as much as six months in advance of the requested due date.
If you have access to the CORA (CenturyLink Online Request Application) system you can transmit the ASR to CenturyLink electronically. If you are not certain which center to use, contact your CenturyLink Service Manager.
CenturyLink Wholesale Team Tool (CWTT) provides Customer contact information. You can obtain information by entering your business name and ACNA.
SPEC Code information
The Type 2 SPEC Codes - SPOP document lists all of the possible entries required in the SPEC field of the ICASR screen.
Service intervals are found in the Service Intervals Guide (SIG).
You can initiate trouble reports for Wholesale Products and Services via electronic or manual interfaces enabling you to initiate, change, and cancel trouble reports to CenturyLink. CenturyLink will update you on the status of your trouble report through final disposition. If your end-users experience problems with their wireless service, provisioned with CenturyLink provided products and services, their first point of contact is you, their WSP. Prior to issuing a trouble report to CenturyLink, you must isolate your end-user's trouble to the CenturyLink provisioned product or service.
The electronic method is Customer Electronic Maintenance and Repair-Maintenance Ticketing Gateway System (CEMR-MTG). It is a graphical user interface to CenturyLink Operation Support Systems for trouble administration activities such as creating and editing trouble reports, monitoring status and reviewing trouble history on Circuit IDs. See Customer Electronic Maintenance and Repair-Maintenance Ticketing Gateway (CEMR-MTG) for more information.
Review the downloadable Billing Percentage Development Worksheet for calculating billing percentages when both CenturyLink and a WASP provide Jointly Provided Switched Access for an Interexchange Carrier.
Integrated Access Billing System (IABS) billing is described in Billing Information - Integrated Access Billing System (IABS).
The Interconnection Agreement type, (i.e., Reciprocal Compensation, and B&K, (defined earlier as Bill & Keep)), applies to Exchange Service (EAS/Local) non-transit MOUs. In addition, the parties bill the originating carrier for Exchange Service (EAS/Local) transit MOUs as well as Exchange Access (IntraLATA Non-IXC Toll) non-transit and transit MOUs.
If the Interconnection Agreement type is Reciprocal Compensation, the parties bill each other for Exchange Service (EAS/Local) non-transit MOUs originating with one party's end-user and terminating to the other party's end-user. The parties bill the originating ILEC/CLEC/WSP for Exchange Service (EAS/Local) transit MOUs.
If the Interconnection Agreement type is B&K, the CenturyLink-generated bill does not include charges for Exchange Service (EAS/Local) non-transit MOUs until both parties agree that the terms and conditions of the Interconnection Agreement for conversion to Reciprocal Compensation have been met.
View available CenturyLink courses by clicking on Course Catalog.
CenturyLink contact information is located in Account Team / Sales Executives and Service Managers
CenturyLink's Wholesale Service Delivery contacts can be found via the CWTT. The CWTT provides you with information specific to your contact and support needs. When you use the tool, you will be able to determine your account management team information. For billing and service request questions consult the customer contact information in the CWTT.
1. What does CenturyLink require of a WSP to begin Type 2 ordering?
Wireless service providers must have an approved license by the FCC to provide wireless service in any given state. In addition, providers must obtain:
- An Operating Company Number (OCN) from the National Exchange Carrier Association (NECA).
- An Access Customer Name Abbreviation (ACNA) from Telcordia.
- NPA/NXXs at least 60 to 90 days before the Type 2 order due date from the North American Numbering Plan Administrator (NANPA).
- An approved Interconnection Agreement. For further details on doing business with CenturyLink access our Wireless Carrier Products & Services web site.
2. How does Internet-related traffic fit in with Type 2 service and billing?
The FCC's Declaratory Ruling, in CC Docket No. 96-98 released February 26, 1999, found Internet traffic to be interstate. CenturyLink's position is that Internet-related traffic is interstate in nature and not subject to reciprocal compensation.
Last Update: March 13, 2014
NC/NCI is a Trademark of Telcordia Technologies, Inc
IABS is a Trademark of CenturyLink™