Once released, BNP binds to and activates the atrial natriuretic factor receptor NPRA, and to a lesser extent NPRB, in a fashion similar to atrial natriuretic peptide (ANP) but with 10-fold lower affinity.
The GTP layer for the control plane (GTP-C) tunnels signaling messages between GSNs in the GPRS backbone network.The GTP-C enables several procedures to be performed through the GPRS backbone network, including path management, tunnel management, location management, and mobility management.he GTP layer for the control plane (GTP-C) tunnels signaling messages between GSNs in the GPRS backbone network.
SIP UUI Support. The IMG supports sending UUI (User to User Information) between a called and calling party. User to User Signaling provides a means of communication between two end users through the signaling network for the purpose of exchanging information of end to end significance. The information is transferred transparently through the network and does not have any effect on the call.