Download Multi-Protocol Correlation: Data Record Analyses and Correlator

CHAPTER 2. BACKGROUND
– This message is used to signal that the phone is ringing on the other
side.
• 200 OK
– This is a generic response message; it is used to as a response to signal
that the recipient is ready to receive data.
• Bye
– This message is used to terminate a session.
2.5.3
Megaco (H.248)
Megaco is a signaling protocol that provides communication between Gateway
and Gateway controller. It is the newest call control protocol which addresses the
MG and Media Gateway Controller (MGC). Media Gateway converts the voice IP
packets received from circuit switching networks. Media Gateway Controller provides good management of this traffic. In other words it works like a Call Agent or
Softswitch. Megaco provides distant management of VoIP Gateway, Digital Subscriber Line Access Multiplexer (DSLAM) and Multi-Protocol Label Switching
(MPLS) routers. It is similar to Media Gateway Control Protocol (MGCP), but it
also unifies networks such as Asynchronous Transfer Mode (ATM).
Figure 2.7: Basic representation of Megaco MGC communication
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