In a telecommunications network, a communication channel identifier agent (CCIA)
is employed to identify communication channels. The CCIA directs the ISUP layer
residing on a node to create Interface Identifiers (IntfIDs). The IntfIDs may contain
an originating point code and a network identifier. The IntfIDs allow a node to
use more than one originating point code to identify itself to other nodes in the
telecommunications network. The IntfIDs are combined with circuit identification
codes to identify communication channels between nodes in the telecommunications network.