What does MGCP mean?
Media Gateway Control Protocol
Media Gateway Control Protocol (MGCP), commonly known as H. 248, is a standard protocol for handling the signaling and session management needed during a multimedia conference. This happens when call-control devices use a plain-text protocol, MGCP, to manage IP Telephony gateways.
What is the difference between MGCP and H 323 Voice gateway?
H. 323 gateway interfaces support the NFAS (Non-Facility Associated Signaling) feature, while MGCP gateways do not. The NFAS feature allows one Q. 931 D channel in a PRI to carry voice signaling for up to 20 PRIs.
What is Cisco MGCP?
MGCP is a client/server protocol that allows the call agent (CA) to take control of a specific gateway endpoint (port). MGCP has the advantage of centralized gateway administration in the CUCM. CUCM controls the state of each port on the gateway endpoint .
What is the difference between SCCP and SIP?
SIP is used for establishing, modifying, and terminating IP based communication sessions with one or more participants whereas SCCP protocol is a Cisco proprietary protocol which is used for communication between Cisco Call Manager and Cisco VOIP phones.
What port does Mgcp use?
Media Gateway Control Protocol (MGCP) TCP, UDP: MGCP uses TCP or UDP as its transport protocol. The well known port for MGCP gateway traffic is 2427. The well known port for MGCP callagent traffic is 2727.
What port does MGCP use?
Which protocol does q931 backhauling and what does it mean?
Backhaul means transporting signaling (all Q.931 messages) from an ISDN PRI/BRI interface on an MGCP gateway to CUCM for processing. That information is backhauled to CUCM through a TCP connection. ISDN Q.931 is the L3 specification that is responsible for call control and management (call setup, tear down, etc).
What is MGCP and tgcp?
The MGCP 1.0 Including NCS 1.0 and TGCP 1.0 Profiles feature provides protocols for RGWs and TGWs, which sit at the border of the packet network to provide an interface between traditional, circuit-based voice services and the packet network.
What is the difference between MGCP and SIP?
So, MGCP is like a master/slave type of protocol, where there is a “call agent” that controls what it does. SIP or H.323, on the other hand, are more intelligent call signaling protocols that operate independently and are not controlled by a particular entity.
What is the use of Cisco MGCP?
When MGCP is used, the Cisco CallManager controls routing and tones and provides supplementary services to the gateway. MGCP provides: Dial plan simplification—no dial peer configuration is required on the gateway MGCP supports encryption of voice traffic. MGCP supports Q Interface Signalling Protocol (QSIG) functionality.
What are the new features of MGCP?
MGCP supports Q Interface Signalling Protocol (QSIG) functionality. In new releases of Cisco IOS, Cisco CallManager and Cisco IP Phone Firmware MGCP can support new features such as Call Admission Control, Dual-tone Multifrequency (DTMF) relay, and Network Address Translation (NAT). This list describes these new features: