ESI IVX 128 Installation Manual download pdf (Page 10)

IVX 128 Plus: additional features

6. UDP port

Enter the first two digits of the remote phone’s UDP port. This number is the base UDP port. The default

UDP base is 59. The last three digits will be the station’s extension number, and will be populated by

default. Extension 112, for example would have a UDP port of 59112 by default.

The UDP port for the remote phone does not have to be the same as for the IP PBX (as programmed in

Function 81). The UDP port for the remote phone must be one that the remote WAN gateway can

program as “open” and must not be already assigned to another device at the remote site. The remote

gateway will then have to be programmed to recognize that traffic destined for that UDP port should be

allowed to pass through its security system.

If the remote gateway cannot open UDP port 59xxx (where xxx is the phone’s extension), or if that port

is already open but designated for another device, the installer can choose any other base UDP number

between 10 and 65, inclusive. After entering the first two digits, the phone’s extension will populate

the last three digits.

7. Remote-access IP address

Enter the IP address that will be used for remote access to IVX 128 Plus. The display will default to the

IP address entered in Function 82 (see page 16). If a Remote IP Feature Phone will use this address to

connect to IVX 128 Plus, press # to confirm; if a Remote IP Feature Phone will use an alternate IP

address to connect to IVX 128 Plus, enter that address and press # to confirm. “SAVE PARAMETERS?”

will appear on the display. If you have correctly entered the IP addressing parameters (items 1–7),

press # to program the parameters for any Remote IP Feature Phone; to abort programming, press * to

restore the system parameters to their previously set values.

8. Extension name

This is used for the LCD display, reports, and as a programming aid. The name’s length can be no

longer than 10 characters (See “Entering alphanumeric characters” in the Installation Manual).

Default: The extension number.

9. CO line group

Assigns the extension’s ability to access one or more CO line groups (9, 8, and 71–76).

Default: 9.

10. and 11. Call forward busy/no answer

The extension can be set to call forward busy/no answer to another extension (or department), a

mailbox or a branch ID for day mode and differently for night mode.

Default: The extension’s mailbox.

12. Extension page zone assignment

Remote IP phones cannot participate in any page zones.

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ESI IVX 128 Installation Manual Page 10