Installation manual
IVX 128  Function 3: Extension programming 
F.3 
Here are the steps for programming analog ports: 
1. Extension number 
Analog port extension numbers must be as shown, corresponding to the 684 or A12 port card in-
stalled in the indicated position: 
684 card
A12 card
1st 
108 109 110 111  
1st 
100–111 
2nd 
120 121 122 123  
2nd 
112–123 
3rd 
132 133 134 135  
3rd 
124–135 
4th 
144 145 146 147  
4th 
136–147 
5th 
156 157 158 159  
5th 
148–159 
6th 
168 169 170 171  
6th 
160–171 
7th 
180 181 182 183  
7th 
172–183 
2. Type 
If Analog Port is selected, then the ports can further be defined as follows; the words in parenthe-
ses 
(EXAMPLE)
 indicate what the display will show in each case:  
• 
Phone (EXT)
 — Designed to provide for standard 2500 type phones. See the 
IVX 128 power user 
guide
 for complete description to the capabilities. 
• 
Common ringer (RINGER)
 — Connected via a tip and ring pair; will apply ring voltage whenever a 
line rings in night mode or when a call is directed to it (transfer, call forwarding, CO ring, etc.). 
• 
Fax (FAX)
 — If the Auto Attendant detects a fax tone, it will automatically forward the tone to the 
analog port programmed as FAX. 
• 
Modem (MODEM)
 — Incoming calls for a modem can be manually transferred to the 
modem extension; also, the modem can automatically generate outbound calls. Maximum con-
nect speed through the PBX is 9600 bps. 
• 
Door phone (DOOR)
 — A telephone connected to this port will automatically dial the 
programmed ring down extension number whenever the set is taken off-hook. 
3. Extension name 
This is used for the LCD display, reports, and as a programming aid. The name length can be no 
longer than 10 characters (See “Entering alphanumeric characters,” page C.2). 
Default:
 The type selected. 
Note:
  The name for the ringer and door must be changed in Function 32. 
4. CO line/ring down 
For fax, modem, or phone, select the desired line group — 9, 8, or 71–76. 
Default:
 9. 
If 
door phone
 is selected, an extension number is entered as a ring down destination. 
Default:
 Extension 100. 
No dial tone is presented for 
common ringer.










