... > < Day Day Up > Chapter 9. Signaling Connection Control Part (SCCP) The Signaling Connection Control Part (SCCP) is defined in ITU-T Recommendations Q.711-Q.716 [58–63] and ... receiving party responds, they might also assign their own reference to the letter and also copy the sender's reference—"Your Reference X." From that point on, both parties state ... extensively in cellular networks. Base Station Subsystem Mobile Application Part (BSSMAP) and Direct Transfer Application Part (DTAP) use it to transfer radio-related messages in Global System for...