A non-transitory computer-readable medium having processor-executable instructions stored thereon for initiating, via a telecommunications network, a communication or connectivity service between a first location and a second location based on optical data transmission of a user-defined optical signal,
- wherein the telecommunications network comprises a backbone network and/or an aggregation network as well as an access network, and the telecommunications network is used to (1) provide end-user communication services and/or IP connectivity to a multitude of end-users connected to the access network, and (2) connect the first location and the second location via at least access network infrastructure and/or aggregation network infrastructure comprising a plurality of optical network nodes,
- wherein the telecommunications network comprises, at the first location, at least one optical data transmission fiber for providing the communication or connectivity service,
- wherein the processor-executable instructions, when executed, facilitate performance of the following steps:
- in a first step, an optical initialization signal is fed or input to the optical data transmission fiber;
- in a second step, the optical initialization signal is received by an optical safety and policy entity or functionality of the telecommunications network, and an identity of the optical initialization signal is determined by the optical safety and policy entity or functionality, wherein the identity of the optical initialization signal corresponds to an identity of a customer providing the identity of the optical initialization signal;
- and
- in a third step, dependent on the determined identity of the optical initialization signal, the communication or connectivity service between the first location and the second location is authorized and activated.