Mr. Simon O'Brien:

If we take them in order, without a doubt, if we are talking about a telephone line that has a connection both internally and externally, the indication might be that something was coming in from the outside if the phone rang.

In terms of the Wi-Fi router, the indications are that while the piece of kit was our own and was housed within our own building, its activity was apparently connecting outside. Maybe something was calling upon it to connect.

In terms of the other last threat, clearly that would seem to indicate that it was outside the building. However, we could not definitively say whether that was aimed at our building.