Basic service element

In telecommunication, the term basic service element (BSE) has the following meanings:

1. An optional unbundled feature, generally associated with the basic serving arrangement (BSA), that an enhanced-service provider (ESP) may require or find useful in configuring an enhanced service.

2. A fundamental (basic) communication network service; an optional network capability associated with a BSA.

Note: BSEs constitute optional capabilities to which the customer may subscribe or decline to subscribe.

Source: from Federal Standard 1037C