MERLIN LEGEND Communications System Release 5.0
Feature Reference
555-650-110
Issue 1
June 1997
Applications
Page I-10
Voice Messaging Systems
I
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Single-line telephone users do not get dial tone when trying to dial out.
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The voice messaging system fails to transfer calls.
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Calls fail to ring or go to coverage prematurely.
Voice Messaging Interface (VMI)
Port Capabilities
9
VMI ports use switchhook flashes for Hold, Transfer, Conference, and Drop in the
same way single-line telephones do. VMI ports also have the ability to perform
transfer redirection, to respond to far-end disconnect, and, in the case of
integrated VMI ports only, to send call information and mark a port in or out of
service. The following sections describe these capabilities. Beginning with
Release 2.1, both integrated and generic VMI ports can perform trunk-to-trunk
transfer.
NOTE:
A 016 module can ring all 16 ports simultaneously. On a 012 or MERLIN
LEGEND MAIL module, only four ports can ring simultaneously (sufficient
for the 6-port configuration of the MERLIN LEGEND MAIL module). If you
are using an attendant or voice messaging system that requires eight of the
012 jacks on a single module, you should not use the remaining jacks on
the module. If the application uses fewer than 8 jacks, you may use the
remaining jacks for T/R devices such as single-line telephones.
Transfer Redirect
If unanswered by the end of the transfer redirect time interval (0–9 rings), a call
transferred from a VMI port alerts at the VMS transfer redirect extension, rather
than returning to the VMI port that originated the transfer. For example, you might
program Extension 15 as a VMI port for a Lucent Technologies Attendant and set
the transfer redirect time interval to four rings. When a call comes in on Extension
15, the caller listens to a recording and dials a request for Extension 24. The call
rings at Extension 24 four times without being answered. The system redirects the
call to Extension 10, the system operator; it does not redirect the call back to
Extension 15.
On an unsupervised transfer (described in “Automated Attendant,” later in this
chapter), when the transfer destination is busy or is an invalid extension, the
transfer redirect is immediate (no time interval). If the system cannot alert the
transfer redirect extension (all buttons are in use), the VMS keeps trying to alert
the transfer redirect extension every 20 seconds until the alert is delivered or the
caller hangs up.
Far-End Disconnect
9
When the system detects a far-end disconnect signal on a line/trunk where a VMI
extension is receiving a call, the system sends the disconnect signal to the VMI
extension, whether or not that extension is the only party left on the call. If another
