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 Q931 protocol?
931 (also called Q931) is a signaling protocol for Integrated Services Digital Network (ISDN) communications that is used in voice over IP (VoIP). The Q. 931 protocol is involved in the setup and termination of connections. Q. 931 is used to transmit and receive call signaling messages according to the H.
What is PRI backhaul?
MGCP PRI backhaul is a method for transporting complete IP telephony signaling information from an ISDN PRI interface in an MGCP gateway to Cisco Unified Communications Manager using a highly reliable TCP connection. It Terminates all ISDN PRI Layer 2.
What is SRST in Cisco?
Survivable Remote Site Telephony (SRST) is a Cisco Unified Communications Manager (CUCM) call processing backup mechanism that allows Cisco IP phones to register to a Cisco router.
What ports does MGCP use?
The entire control intelligence is controlled by a Call Agent who instructs the endpoint what action to take once an event is detected. MGCP uses TCP port 2428 and UDP port 2427.
How do I configure MGCP gateway and CUCM TFTP server?
MGCP Gateway and the CUCM TFTP server must have IP connectivity between each other. It’s important to ensure that TCP and UDP ports 2427, 2428 and 2727 can communicate between the MGCP gateway and CUCM TFTP server. If there is a firewall then ensure these ports are enabled. MGCP gateway and endpoints are configured in CUCM.
What is MGCP and how does it work?
MGCP is a Call Agent/Endpoint protocol, where the Endpoint is controlled by a Call Agent of some type. The entire control intelligence is controlled by a Call Agent who instructs the endpoint what action to take once an event is detected. MGCP uses TCP port 2428 and UDP port 2427.
What is media gateway control protocol (MGCP)?
The Media Gateway Control Protocol (MGCP) is defined by RFC 2705. MGCP is a Call Agent/Endpoint protocol, where the Endpoint is controlled by a Call Agent of some type. The entire control intelligence is controlled by a Call Agent who instructs the endpoint what action to take once an event is detected.