NEC 2000 IPS manual Service Conditions on Remote Connections

Chapter 13 Voice Over IP (VoIP)

Service Conditions on Remote Connections

1.The network between NEAX 2000 IPS and IP Enabled Dterm must meet the following requirement: Waiting time for ACK signal: maximum 600ms (300ms recommended)

To check the above requirement, send Ping command from a PC to a remote IP Enabled Dterm and see the result of the command (“Time” shows the time to receive ACK signal.). If the result does not meet the above requirement, abnormal operation such as connection unavailable, deterioration of voice quality or abnormal state of IP terminal may occur.

2.The remote IP Enabled Dterm can be connected to the network via either of the following devices: Router

Dial-up router Modem Cable Modem ADSL Splitter

3.The IP terminal can be assigned to Local Connection Mode or Remote Connection Mode by entering the Administrator Mode of the IP terminal. After the operation mode of the terminal is changed (Local to Remote, or vice versa), login operation is required again.

4.The differences between Local Connection Mode and Remote Connection Mode are as follows:

Item	Local Connection Mode	Remote Connection Mode
Confirmation to Connect	1 time per minute	1 time per day
IP Terminal		(10 minutes from 00:00 a.m.)
		2000 IPS sends clock signal to IP
Clock Control	2000 IPS sends clock signal to	Enabled Dterm when the IP
	IP terminal on a minute basis.	Enabled Dterm is logged in or the
		clock data is entered by CM02.

5.Individual Location number can be assigned for Local Connection Mode and Remote Connection Mode, on a station number basis, by system programming. The IP Enabled Dterm can work based on the location number in each mode. When the Location number for the station is changed, login operation is required again.

6.NAT (Network Address Translation) is supported using remote Dterm IP terminals only. For NAT support a Global IP Address programmed in the NEAX 2000 IPS CPU is required.

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