ZyXEL Communications 2602HWNLI-D7A manual URL Type, Expiration, Duration, Register, Re-send, Timer

Prestige 2602HWNLI-D7A Support Notes

URL Type	Select SIP to have the Prestige include the domain name with the SIP
	number in the SIP messages that it sends.
	Select TEL to have the Prestige use the SIP number without a domain
	name in the SIP messages that it sends.
Expiration	This field sets how long an entry remains registered with the SIP register
Duration	server. After this time period expires, the SIP register server deletes the
	Prestige’s entry from the database of registered SIP numbers. The register
	server can use a different time period. The Prestige sends another
	registration request after half of this configured time period has expired.
Register	Use this field to set how long the Prestige waits before sending a repeat
Re-send	registration request if a registration attempt fails or there is no response
Timer	from the registration server.
Session	Use this field to set the longest time that the Prestige will allow a SIP
Expires	session to remain idle (without traffic) before dropping it
Min-SE	When two SIP devices negotiate a SIP session, they must negotiate a
	common expiration time for idle SIP sessions. This field sets the shortest
	expiration time that the Prestige will accept.?
	The Prestige checks the session expiration values of incoming SIP INVITE
	requests against the minimum session expiration value that you configure
	here. If the session expiration of an incoming INVITE request is less than
	the value you configure here, the Prestige negotiates with the other SIP
	device to increase the session expiration value to match the Prestige’s
	minimum session expiration value.
RTP Port	Real time Transport Protocol is used to handle voice data transfer. Use this
Range	field to configure the Prestige’s listening port range for RTP traffic. Leave
	these fields set to the defaults if you were not given a range of RTP ports to
	use.
	The Dual Tone Multi-Frequency (DTMF) mode sets how the Prestige
	handles the tones that your telephone makes when you push its buttons. It
DTMF Mode	is recommended that you use the same mode that your VoIP service
	provider uses.

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