Matrix NAVAN CNX200, Системное руководство

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Matrix NAVAN CNX200 System Manual 401
• Select the Enable NAT Keep Alive check box to send Keep Alive messages periodically to refresh the
binding in the NAT router. Default: Disabled.
• Define as Interval (sec) , the time period, from 001 to 9999 seconds, after which the phone should send
Keep Alive message. Default: 120 seconds.
The time period you define should be less than the binding timer of the router.
Timers
15.
Set the following Timers to the desired value, where required:
• SIP INVITE Timer (sec): This is the time in seconds that the phone waits for a response from the
called party after sending INVITE message. This timer starts after sending INVITE message to the
called party and stops on receipt of the provisional response or the final response or when the user
disconnects the call. On expiry of the timer, the phone terminates the call process and gives an error
tone to the user. The range of the SIP INVITE TIMER is 10-180 seconds. Default: 30 seconds.
• SIP Provisional Timer (sec) : This is the time in seconds that the phone waits for final response after
receiving the provisional response from the called party. This timer starts on the receipt of the
provisional response from the called party and stops on receipt of the final response from the called
party or when the user disconnects the call. On expiry of the timer, the IP phone terminates the call
process and gives error tone to the user. The range of SIP Provisional Timer is 10-180 seconds.
Default: 60 seconds.
• General Request Timer (sec): This is the time in seconds for which the phone waits for response of a
transaction request. This timer starts on initiating a transaction. This timer stops on receipt of a
response for the request. On expiry of the timer, the phone clears the transaction. This timer is used for
Registration request, etc. The range of the General Request Timer is 10-60 seconds. Default: 20
seconds.
When you change any of the parameters listed below in the SIP Extension at Location 1, 2, 3, the phone will go in
Auto Configuration mode automatically, if registered:
• SIP ID (Extension Number)
• Extension Name
• Enable SIP Extension
• Authentication ID
• Authentication Password
• Enable Device
• Device Type
• MAC Address
• Registrar Server Address
• Key Map in the Key Template assigned to the IP phone
• Call Progress Tone - Region
• Date and Time - Region
• Apply Daylight Saving Time?
• Language
• Transport Mode
• Enable SRTP?
• RTP Ports
• Quality of Service (QoS)
• NAT Keep Alive