Function 23: Co Line Parameters - ESI IVX20 Installation Manual

Function 2: CO lines
You can program an allow exception table and a deny exception table in this function, to be excep-
tions to toll restriction. A number listed in the allow exception table (e. g., a branch office or a
vendor's location) will be allowed to all stations, regardless of how they were programmed in Func-
tion 32. Conversely, a number listed in the deny exception table (e. g., a "1-900" number) will be
denied to all stations.
Enter the numbers for either table, separating each number by #.
1.
Example: For "1-900," enter 1 9 0 0 #.
Note: Press MUTE/DND to insert a "wild card" digit.
Warning: Do not include IVX's line access codes — 9, 8 or 7 — in any of the toll
restriction entries!
After the last number, enter # # to end the list.
2.
IVX 20 will apply the numbers you enter to their most significant digit.
Example: Entering 1 5 0 5 into the deny exception table tells IVX to deny all "1+" calls to
area code 505. But entering 1 5 0 5 4 4 5 8 7 8 7 into the table tells IVX to deny "1+"
calls specifically to (505) 445-8787 while allowing other "1+505" calls.
To allow information calls, enter into the allow table: 411, 1411, 5551212, 1XXX5551212 (where X
is a wild card digit, entered by using MUTE/DND).
Default: None.

Function 23: CO line parameters

Function 231: Line receive volume
Many variables can affect the volume of the CO lines. Weak lines can reduce IVX's ability to prop-
erly detect DTMF dialed by an outside caller. Conversely, "hot" lines can cause DTMF distortion
and/or increase the opportunity for message talk-off (i.e., messages being cut off before comple-
tion). Ideally, a message recorded from an outside call has the same playback volume as the
system prompts.
This function can be used to adjust the gain of the receive volume of the CO lines.
Range: 0–12 (lowest to highest gain, respectively).
Default: 10.
E.4
IVX 20