Multi-Tech Systems MVP-2400, MVP-2410, MVP-3010 manual Registrar, 288

T1 Phonebook Configuration			MultiVOIP User Guide
	PhoneBook Configuration Parameter Definitions
		(cont’d)
	Field Name	Values	Description
	Single Port Protocol (SPP)
	Mode	Direct,	SPP voip systems can operate in
		Client, or	two modes:
		Registrar	in the direct mode, where all
			voip gateways have static IP
			addresses assigned to them; or in
			the registrar/client mode, where
			one voip gateway serves as
			registrar and all other gateways,
			being its clients, point to that
			registrar. The registrar assigns IP
			addresses dynamically.
	General Options
	Port		The UDP port on which data
			transmission will occur. Each
			client voip has its own port. If
			two client voips are both behind
			the same firewall, then they must
			have different ports assigned to
			them.
			If there are two clients and each is
			behind a different firewall, then
			the clients could have different
			port numbers or the same port
			number.
			(Default port number = 10000.)
	Re-trans-		If packets are lost (as indicated by
	mission		absence of an acknowledgment)
	(in ms)		then the endpoint will retransmit
			the lost packets after this
			designated time duration has
			elapsed. (Default value = 2000
			milliseconds.)
	Max		Number of times the voip will re-
	Re-trans-		transmit a lost packet (if no
	mission		acknowledgment has been
			received). (Default value = 3)

288