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4-4
Integration Volume
4.2
CENTREX SMDI LIMITATIONS
The Octel 200/300's interface with Centrex is restricted. The following limitations should be considered
when configuring the interface. All extensions should not be forwarded to the Octel 200/300, depending
on who typically calls the extension.
Sequential Forwarding
SMDI Performance
SMDI Link
DMS-100 and SL-100
Limitations
Octel 200/300
S.4.1
Sequential forwarding should be avoided!
Sequential forwarding is illustrated by the following:
Extension 2311 is forwarded to 2312 and 2312 is in turn forwarded to
the Octel 200/300.
When a call is forwarded from 2311 to 2312, and then to the Octel
200/300, the Centrex SMDI software tells the Octel 200/300 that the
call came from 2312, not the originally called station, 2311. The Octel
200/300 treats the call as though the caller had intended to reach 2312,
and gives the wrong name or greeting.
When Centrex becomes busy, sending data to the Octel 200/300 is
slowed down. The Octel 200/300 can wait up to the amount of rings
defined in System Parameter 99, 100, or 117 for information sent from
the PE. If the information is not sent, the Octel 200/300 answers with
the company greeting, not the called party's mailbox information. Refer
to the Centrex Configuration section.
If more than one Octel 200/300 cabinet is required, additional SMDI
links are required, one for each cabinet. Stations must be forwarded to
the appropriate cabinet.
In the past, the DMS-100 and SL-100 did not send call records on
-
direct external calls. For this reason, the Octel 200/300 took longer
to answer the port because it was waiting for the call record. This
problem was corrected with software release BCS 26.
The DMS-100/SL-100 has a feature available called COD, which
-
offers the Octel 200/300 a momentary disconnect. With System
Parameter 77 set to YES, the Octel 200/300 uses that momentary
disconnect to determine when the calling party hangs up. If this
feature is not used, the system may attempt to transfer callers who
have already disconnected.
When a caller abandons a call before it has been answered
-
(typically as it is forwarded to the Octel 200/300), the central office
or PBX may still send a call record to the Octel 200/300, causing
the system to take the port off hook in an attempt to connect to the
caller. When the port goes off hook, it may draw dial tone, then
reorder tone or a recorded announcement from the switch. This
tone or announcement may be recorded as a message in the called
party's mailbox. This can be annoying and can decrease the amount
of disk space available.
Some switches allow a feature called "No Off Hook" or NOH, to be
programmed on the Octel 200/300 port lines. It has been reported
PB60019-01
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