Multi-Tech Systems MVP-2410/3010, MVP-410ST/810ST, MVP-130/130FXS manual 368

E1 Phonebook Configuration MultiVOIP User Guide

PhoneBook Configuration Parameter Definitions

(cont’d)

Field Name	Values	Description
H.323 Version 4 Parameters
H.323	Y/N	Signaling for multiple phone
Multiplexing		calls can be carried on a single
(Mux)		port rather than opening a
		separate signaling port for
		each call. This conserves
		bandwidth resources.
H.245	Values: Y/N
Tunneling	Description: H.245 messages are
(Tun)	encapsulated within the Q.931 call-signaling
	channel. Among other things, the H.245
	messages let the two endpoints tell each other
	what their technical capabilities are and
	determine who, during the call, will be the
	client and who the server. Tunneling is the
	process of transmitting these H.245 messages
	through the Q.931 channel. The same TCP/IP
	socket (or logical port) already being used for
	the Call Signaling Channel is then also used
	by the H.245 Control Channel. This
	encapsulation reduces the number of logical
	ports (sockets) needed and reduces call setup
	time.

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