Product Listing
Dial Lock® - V12.0
Product Description
Dial Lock is an Advanced Intelligent Network (AIN) service that provides the ability to block outgoing calls. Through the use of an administrative password, an end-user can determine what type of outgoing calls will be permitted from the line(s) Dial Lock is provisioned.
The blocking can include local and long distance outgoing calls. Different blocking parameters can be established on a per line basis. The end-user must call the CenturyLink™ Update Center to establish and make changes to their blocking profile.
Dial Lock is designed to be used by the end-user to control/limit charges on their local service line including long distance toll. It is not designed to function as a toll blocking tool.
When Dial Lock is initially provisioned the following default blocking will be in place:
- All Long distance calls, including international calls and Carrier Access Codes
- Directory assistance calls
- Information Services calls i.e., 900, 960 and 976 calls
- Operator assisted calls
NOTE: Local and toll free calls will not be blocked when Dial Lock is initially activated. The end-user must initiate blocking on these by calling the Update Center.
There are four ways an end-user can control outgoing calls through Dial Lock:
- Programming specific call types to be allowed/disallowed when Dial Lock is active. The end-user accomplishes this by calling the Update Center. The call types that can be allowed/disallowed are limited. See Optional Calls section (below) for call types that can be included/excluded from Dial Lock blocking.
- Turning Dial Lock off temporarily. The end-user must call the Update Center to turn Dial Lock off. While Dial Lock is off, outgoing calls will be allowed as if Dial Lock were not on the line. The end-user must call the Update Center again to turn Dial Lock on. Calls will not be blocked when Dial Lock is off, unless the end-user has some other type of blocking service not associated with Dial Lock.
- The Authorized Phone Number List. See that section (below) for detailed information of calls that can be bypassed while Dial Lock is active.
- The Privileged Calling Code. See that section (below) for detailed information of calls that can be bypassed while Dial Lock is active.
NOTE: CenturyLink will not issue credits or adjustments to you for long distance charges incurred on an end-user line due to the end-user deactivating the Dial Lock blocking functions established by you.
If the Dial Lock feature does not perform for the end-user as it is designed (functions, features) it will be treated or adjusted in accordance/parity with Retail end-users with Dial Lock.
The end-user can add or remove the following blocking types:
- Directory assistance calls
- Local calls
- Operator assisted calls
- Toll free calls
NOTE: Dial Lock does not allow the end-user to disable long distance blocking, including international or information services calls and carrier access codes unless Dial Lock is temporarily turned off or the number is added to the Authorized Phone Number List by the end-user or the Privileged Calling Code is used.
Through the use of an Authorized Phone Number list, an end-user can create a list of up to 20 numbers that can be called regardless of the type of blocking that is in place. End-users create the Authorized Phone Number list by contacting the Update Center.
The list can contain either a 10-digit telephone number, an area code only (3-digits), an area code and prefix only (6-digits), an international country code only (as few as 2-digits), or a full international number (as many as 15-digits). Calling prefixes, such as 0, 1 or 011, will not be stored on the list.
Carrier Access Code dialing can be used with the Authorized Phone Number List. The end-user should program the regular number in the list. When dialing the number they then include the 1010XXX etc., for the carrier they want to access.
A Privileged Calling Code is a 4-digit code that must be entered by a caller to override certain types of blocking. This code should not be confused with the 6-digit administrative security code required to access and make changes to Dial Lock.
The end-user can program up to five Privileged Calling Codes by calling the Update Center. All five codes have the same privileges. It is not possible, at this time, to allow certain types of calls to be unblocked for one code and different unblocking for another code.
The end-user will need to enter their Privileged Calling Code as soon as they hear the message that this type of call is blocked.
The 6-digit administrative security code used by the end-user to establish the Privileged Calling Code will not override a block when an outbound call is placed. The end-user must use a 4-digit Privileged Calling Code if they are placing a call that is normally blocked by Dial Lock.
Not all calls can be bypassed using the Privileged Calling Code in all switch types. See the table below to determine what the end-user can or cannot bypass with the Privileged Calling Code.
| Types of Blocked Calls | DMS™-100 and 5ESS - Can it be bypassed? |
| Regular 1 Plus long distance calls | Yes |
| Pay Per Call (1-900) calls | Yes |
| Calls to "NPA 555-1212" in any area code | Yes |
| Toll free calls; i.e., 800, 888 calls | Yes |
| Local Calls | Yes |
| Operated assisted calls | Yes |
| International Calls beginning with "01" or "011" | Yes |
| Calls to "411" or "1-411" | Yes |
| Carrier Access Code dialing; i.e., 1010xxx | Yes |
The following table reflects the announcements heard for the type of outgoing call attempted from a line with Dial Lock active.
| Type of Blocked Calls | Announcement |
| Local calls | We're sorry, local calls cannot be completed from this telephone. |
| Directory Assistance | We're sorry, directory assistance calls cannot be completed from this telephone. |
| Long Distance calls | We're sorry, long distance calls cannot be completed from this telephone. |
| Toll Free calls | We're sorry, toll free calls cannot be completed from this telephone. |
| Operated Assisted calls | We're sorry, operated assisted calls cannot be completed from this telephone. |
| All other blocked calls | We're sorry, your call cannot be completed from this telephone. |
NOTE: If the end-user has established a Privileged Calling Code to bypass certain types of blocking, they will need to enter their code as soon as the blocking announcement starts.
The CenturyLink Exception list includes numbers that can be called regardless of the type of blocking that has been established on the end-user's account. The list is created and maintained by CenturyLink and cannot be changed by the end-user. Calls will be allowed to the following numbers:
- 911
- 311 - City Government - Non-Emergency access to Fire, Police and City Hall
- 1 800-573-1311 CenturyLink Residential Repair
- 1 800-954-1211 CenturyLink Small Business Repair
- 1 888-NPA-8052 Update Center
- 1-800-770-2513 CenturyLink Enhanced Service Center
- *98 or CenturyLink Easy Access with Voice Mail Service.
The Update Center, used to access the menu options for AIN products and services, can be accessed, by end-users, one of two ways:
- By dialing 1-888-NPA-8052 (NPA equals the end-user's area code)
- By dialing *78 from the line Dial Lock is provisioned
- Exceptions:
- In Minnesota for NPAs 763 and 952, use NPA 612; i.e, 1-888-612-8052.
- In Iowa for NPA 641, use NPA 515; i.e., 1-888-515-8052.
- In Arizona for NPA 928, use NPA 520; i.e., 1-888-520-8052.
- In Oregon for NPA 458, use NPA 541; e.g., 1-888-541-8052.
- In Oregon for NPA 971, use NPA 503; e.g., 1-888-503-8052.
A 6-digit administrative security code is required to access and make changes to Dial Lock. The temporary default security code is 123456. The end-user will call the Update Center to establish a permanent security code and make changes to their blocking profile.
- The end-user will be requested to enter their temporary security code of 123456. Recorded instructions will guide the end-user through establishing their own 6-digit security code.
- The first time the end-user calls the Update Center they will hear general instructions for managing their Dial Lock service before they hear the Dial Lock Main Menu. The end-user will have the option to bypass the general instructions the next time they call the Update Center.
When the end-user accesses the Dial Lock Main Menu, they will hear an announcement advising them that the Dial Lock status is either on or off.
The end-user may have other AIN products such as Remote Access Forwarding that require use of a 4-digit security code. This 4-digit code will not gain access into the end-user's Dial Lock service. However, the end-user can make changes to their Remote Access Forwarding options using their 6-digit administrative security code.
For end-users with multiple AIN features using security codes, entering a 4-digit security code will give options to features that use 4-digit codes only. If entering a 6-digit security code, then all AIN features using security codes will be given as options, including those that use 4-digits.
Changing the 6-digit security code will affect all AIN features using 6-digit codes. The same is true for AIN features using 4-digit security codes.
Touchtone is required to interact with the automated update process.
To turn Dial Lock off and on:
- End-user calls the Update Center using their new 6-digit security code.
- At the Dial Lock Main Menu, an announcement will tell whether Dial Lock is on or off.
- If Dial Lock is on, press 1 to turn it off. No calls will be blocked until the end-user turns Dial Lock service on again.
- If Dial Lock is currently off, press 1 to turn it on.
To change the blocking of local, operator assisted, directory assistance or toll free calls, the end-user will call the Update Center, go to the Dial Lock Main Menu, and follow the recorded instructions.
To place a call using a bypass code:
- Dial the number as usual. If Dial Lock is blocking that type of call, the end-user will hear the beginning of an announcement that the call is blocked.
- The end-user will immediately enter their 4-digit bypass code to interrupt the announcement and allow their call to be completed.
End-user requests for security code resets should be referred to the Enhanced Service Center at 1-800-770-2513.
To change a security code:
- The end-user will call the Update Center using their current 6-digit security code.
- Select "Personal Options" and follow the recorded instructions to set up a new 6-digit security code.
Availability
Dial Lock is available in selected 5ESS and DMS-100 switch types.
Dial Lock is not available with:
- CCMS/Centron®/Centrex
- Direct Inward Dialing (DID®)
- Integrated Services Digital Network (ISDN)
- Measured/Message Rate Service
- Private Branch Exchange (PBX)/Trunks
- CenturyLink Stand-By-Line™
Additional information can be found in the Pre-Ordering Overview.
Compatibility & Restrictions
| Feature/Service | Rules/Restrictions |
| Call Forwarding | Limited compatibility. If an end-user has a switch based Call Forwarding feature, such as Call Forwarding Variable, Call Forwarding Busy Line/Don't Answer or Call Forwarding Expanded, calls will not be forwarded if the forward to number is a type of call blocked by Dial Lock. For example, if the end-user has blocked long distance calls using Dial Lock and has forwarded their incoming calls to a long distance number, the call will not be forwarded because of the Dial Lock blocking. The incoming caller will hear the following announcement "We're sorry. Long distance calls can not be completed from this telephone." To avoid this issue, the Dial Lock end-user will need to include the Call Forwarding Number on their Authorized Phone Number List or use the Privileged Caller Code for Dial Lock. The Call Forwarding features will then work properly. |
| Call Trace | Is compatible |
| Call Transfer | Is compatible in DMS-100 switch type only |
| Carrier Access Code Blocking | Dial Lock can not be added to the account unless the Carrier Access Code Blocking feature is removed. |
| Continuous Redial | Is compatible if the number that the end-user is attempting to reach using Continuous Redial is on their Authorized Phone Number List or is a call type that can be reached using a Privileged Calling Code. If the number that the end-user is attempting to reach does not meet these criteria and Dial Lock is on, the end-user will be billed the Continuous Redial pay per use charge. The pay per use charge should be adjusted. |
| Custom Ringing | Is compatible. Custom Ringing is an incoming service and will not affect Dial Lock except as explained under Call Forwarding. |
| CustomNet™ | If existing on an account Dial Lock can not be added. |
| Foreign Central Office (FCO)/Foreign Exchange (FX) | Availability is determined by the central office switch the FCO/FX number is served from, not the end-user's physical location. If the FCO/FX telephone number originates from a switch that Dial Lock is available in, the end-user can have the service. |
| Last Call Return | Is compatible if the telephone number that is being called using *69 Last Call Return is on the Authorized Phone Number List or is a type of call that can be reached using a Privileged Calling Code. If the number that the end-user is attempting to reach does not meet these criteria and Dial Lock is on, the end-user will be billed the Last Call Return pay per use charge. The pay per use charge should be adjusted. |
| High-Speed Internet | Is Compatible |
| CenturyLink Easy Access | Is compatible. CenturyLink Easy Access or *98 will not be blocked when Dial Lock is active. This is not optional. |
| Pay Per Call Restriction | If existing on an account Dial Lock can not be added. |
| Remote Access Forwarding | Is Compatible |
| Voice Messaging/Business Voice Messaging | Limited compatibility. If Dial Lock blocking is activated and local calls have been blocked, the incoming call will not go to Voice Messaging/Business Voice Messaging. The incoming caller will hear the following announcement "We're sorry. Local calls can not be completed from this telephone." To avoid this issue, the Voice Messaging Call Forwarding Number should be shown following the Dial Lock USOC OC4. Additionally, the Dial Lock end-user must include their Voice Messaging/Business Voice Messaging retrieval number on their Authorized Phone Number List. By including the retrieval number on the list, the Dial Lock end-user will be able to call their retrieval number to review their messages. This step is only necessary if the end-user has blocked local calls as part of their Dial Lock blocking profile. |
Pricing
Rate Structure
Dial Lock has 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.
Ordering
Ordering Rules
Additional information on ordering can be found in the Ordering Overview.
Feature Activity Types (Action Codes)
The valid Feature Activity Types are:
- D = Disconnect
- N = Add
NOTE: When changing from one feature to another, use N and D Feature Activity Types
Feature Codes (USOCs)
Dial Lock is identified by the USOC OC4.
Feature Detail (FID and Data Requirements)
Adding Dial Lock
This feature is ordered by including:
- Feature Activity Type N and USOC OC4.
NOTE: Feature Detail requires the FID CFN (Call Forwarding Number) behind USOC OC4 when voice messaging is on the same line, e.g., N OC4 /CFN NPA nnn-nnnn.
Removing Dial Lock
This feature is removed by including:
- Feature Activity Type D and USOC OC4.
Last Update: March 23, 2015
Last Reviewed: October 23, 2023