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.
Text message (SMS) settings. 1  Delivery reports: when this option is activated, the network informs you whether or not your message was delivered. 2  Manage SIM card messages: allows you to manage the messages stored on the SIM card.3  Message center: allows you to enter the number of your message center where your messages reside while the system is ... Manage SIM card messages: allows you to manage the messages stored on the SIM card. 2  Message center: allows you to enter the number of your message center where your messages reside while the system is attempting to deliver them.