How to automatically assign a selection code between two S7 signal points

摘要

The present invention relates to a method of automatically allocating a selection code, which the manager of both signaling points had to match at the first connection in SS7 network, to a possible number after negotiation at two signaling points.;The present invention comprises the steps of sending a signal link test message at two adjacent signal points A and B, in which signal point A attempts to connect with B with a selection code assigned at signal point A, for link connection to signal point B; Verifying, by the signal point B, the signal link test message received at the signal point A and allocating the selection code of the corresponding link with the selection code included in the message; Sending a signal system test response to signal point A, wherein the signal point B is a reply message containing an assigned selection code; Confirming that the signal system test response returned by the signal point A includes the same selection code as the signal link test message sent by the signal point A; And assigning this selection code if it is the same selection code message, thereby automatically assigning the selection code between two SS7 signal points.