Mitel 3000 Installation And Maintenance Manual page 125

Mitel 3000
Installation & Maintenance Manual
Phantom calls
When a call is answered
there is no one there.
Call Pickup
Call Pickup is not answering
calls.
Open the door facility
When the 'Open the Door'
facility is operated from a
Feature Phone the door does
not open.
Flexible Numbering
How do I return to a two
digit numbering scheme?
This is usually caused when the caller has hung up and the phone(s) continue
to ring for a period. If the ringing phones are answered during this period it
will appear to be a "Phantom call" - no one is on the line.
The ringing signal on the Telco line is ringing on for 1 second, off for 4
seconds, repeated. When a caller hangs up the line stops sending the ringing
signal. However the system will not be aware that the ringing has stopped for
some seconds. The system will stop ringing the internal extensions when it has
not detected a ringing signal on the line for a period 5.5 seconds. The internal
phones will still indicate there is a call ringing within this interval. This period
will be variable but can be up to the 5.5 seconds. If a phone is answered in this
period there will be no one on the line as this is a function of the ringing signal
detection timing, there is nothing that can be done other than make the user
aware of the issue.
If the call is on a line which is programmed for Auto-Attendant or Courtesy
Service, it is essential that the Telco line has calling party supervision. This
provides a disconnect signal when the outside caller goes on hook When a call
is received by the system, the Auto-Attendant or Courtesy service will answer
the call and ring the appropriate extension(s). If the external caller hangs up
before an extension answers the call, the line will send a disconnect signal to
the system. The system detects this signal and stops ringing the extensions.
If the Telco line is not supervised, the caller can go on hook but as no
indication is given to the switch that the caller has gone, the switch will
continue to ring the internal extensions until the ring detection timer times out
on no repeated ring from the Telco. When this call is answered there will be no
one there.
It is important to check with the Telco that Calling Party Disconnect
supervision is provided on the lines connected to the system.
The 'Call Pickup' facility allows extensions within the same group to answer
each others calls. All calls to the extension, internal and external, are answered
using this facility.
Separate pick up group programming is not provided. However, up to 20
groups can be programmed in the system. Program the extensions that are to
answer each other's calls using the 'Call Pick up' facility into groups. Up to 16
extensions can be entered into each group.
This is most likely because the key on the Feature Phone is pressed for greater
than 2 seconds. This timer applies to all keys on the system phones and if the
key is pressed for too long a period it is ignored. In the case of "Opening the
Door" some people are used to pressing door opening keys for the duration
they expect the door to stay open and are inclined to press the key for too long
a time.
The default setting on the Mitel 3000 is that the extension numbers are two digits long.
If a system is reprogrammed with a three- or four-digit numbering scheme, it must be
reset to its default values to get back to a two-digit numbering plan.
It is possible to go between three and four digit numbering by reprogramming rather
than defaulting.
If the numbering plan is being changed in the flexible numbering programming, it is
essential that this is the first programming to be carried out as it affects many of the
other programming options.
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