Specifications

VMMI Programming Exercises
Printed in the USA Page 3 GCA39-082 Rev 2, Issue 9/01
When programming tie lines, line port similarity does not matter, only circuit similarity. If you
were going to program two E & M tie line trunks between these two systems using circuits 4 and
5, you would begin programming the tie lines on line ports 28 and 29 on the FX and line ports 4
and 5 on the DXP. Note that if two trunks are programmed on one system, two must be
programmed on the other as well. One system with 4 tie lines and another with two will have
problems in operation or not work at all. Circuit type and the number of circuits used must be
the same between the connecting systems.
Step 2: Programming the Tie Lines
Using the FX example above, circuits 4 and 5 are to be programmed as E & M tie lines. Assume
that the DXP programmer is doing the same on the other system.
• Circuits 4 and 5 in the FX system correspond to line ports 28 and 29.
• Use the Feature Based Programming field to program both ports simultaneously.
• Under Line Types select E&M tie lines.
• Line dialing mode defaults to Tone. Remember tone dialed E & M tie lines may require
additional DTMF receivers. Although the Services board on the FX and DXP both come
with 1 DTMF receiver available for tone-dialed calls.
• The default signaling type is Wink Start.
• The default connection type for this example is Direct.
Default line access is Dialing, which means that digits are expected by the called system. If
you choose Hot Line, there is no preliminary digit collection when an incoming call arrives
on a tie line; a Hot Line extension (selected under the Hot Line Extension field) rings
immediately on the called system when a tie line is accessed between the calling and called
systems.