Centrex provides customers a common numbering plan for unifying multiple sites in a metropolitan area. Users typically have their own direct dial number and access to local and long-distance calling. Common on-site control equipment, such as a key system or private branch exchange (PBX), is not required
A NCDIT communication service analyst works with you to determine the viability of Centrex to meet your business needs. The analyst also supports you throughout the entire process of obtaining the service, including helping with ordering through NCDIT business services.
Centrex is a pass-through service available to customers via the N.C. Department of Information Technology's negotiated contracts with commercial service providers AT&T and Lumen. The governing contracts for these services are negotiated to provide rates and terms favorable to the state.
Customers are responsible for purchasing and maintaining their desktop telephone equipment. Examples of suitable phones include standard single-line telephone sets, feature sets equipped with a complement of button-accessed features, multi-line key telephone sets, electronic business sets and integrated services digital network (ISDN) phones (digital Centrex only).
The Centrex service provides a basic feature set and is usually delivered via analog access lines, with digital lines available for larger sites.
|Basic subscriber service
|Includes busy and don't answer call coverage
|Unless otherwise specifically authorized, it is blocked by the vendor
- Centrex frees you from the costs and responsibilities of major equipment ownership.
- As a customer, you are spared the expense of having to keep up with fast-moving technology changes.
- An NCDIT communication service analyst simplifies the process by supporting customers throughout the entire process, from determining Centrex's business viability to obtaining the service.
- Service requests that incur a cost to the agency will typically require approval from the requesting agency’s CIO, financial officer or manager, depending upon your agency's requirements.
Requirements & Customer Responsibility
|Required NCDIT Services
|Other Technical Requirements & Prerequisites
|The service team should acknowledge a service request within about 3 business days.
|The service team should be able to complete a well-defined service request within about 30 to 45 days upon successful completion of assessment and design activities.
|Any state or local government agency as well as educational institutions
|Service Support Hours
|Support for the service is available 24/7.
|The service is available 24/7, excluding planned outages and maintenance windows.
|Standard Maintenance Windows
|Dependent on the Centrex telco provider's maintenance windows
|Service Level Agreements
Because Centrex is a pass-through service, NCDIT is unable to commit to service level agreements, such as provisioning and resolution times.