| 摘要 |
<p>The invention is related to a telecommunication system comprising a public switched telephone system (1), a private branch exchange network (2) and a patch panel (3) which is, according to the invention, connected to the public switched telephone system (1) as well as to the private branch exchange network (2). The invention has the advantage that, in order to provide additional functionality to the private branch exchange network (2), the latter need not be altered. All implementation of the additional functionality are implemented in the patch panel (3). Therefore, any private branch exchange network (2) available on the market can be enriched by said additional functionality in a short time. <IMAGE></p> |
