IPECS Release 5
Feature Description & Operation
5.0
2-82
called/calling station and station status. The various message types and definition of the fields are
shown in the chart below.
Type I message
cr lf
MD
ggg mmmm a xxxxxxxxx sp yyyyyyyyy sp cr lf^Y
Type II message
cr lf
MD
ggg mmmm a xxxxxxxxx sp sp cr lf^Y
Type III message
cr lf
MD
ggg mmmm a sp yyyyyyyyy sp cr lf^Y
Field
Description
cr
carriage
return
lf
line
feed
MD
Message
Desk
ggg
Message desk number, AA/VM system, default 001
mmmm
Message Desk terminal, 0001-9999, VM port
a action
code
xxx...x
called station number or station calling the VM group
yy…y
calling
station
number
sp
ASCII space character
^Y
end of SMDI message, c Y (0x19)
The following table provides detailed information on the meaning and function of the various SMDI
messages used.
Table 2.38.3-1 SMDI Messages
Action Code
Reason
Purpose
In-band
code
Message
Type
SMDI Message
MD 001 0001-
A
Unconditional forward to VM
Put Mail
P#
II
A xxxxx yyyyy
B Called
Station
busy Busy Mail
P#3P
II
B xxxxx yyyyy
C
Disconnect, connected party
disconnect
*****
II
C xxxxx yyyyy
D
Direct Fwd to VM group
Get Mail
P##
II
D xxxxx yyyyy
E
Error, invalid number
Error
P#*5P
II
E xxxxx yyyyy
H
Two-way Record
record
None
II
H xxxxx yyyyy
I DND
DND
P#*6P
II
I
xxxxx
yyyyy
N
No Answer
No Answer
P#*4P
II
N xxxxx yyyyy
R
Direct CO/IP ring to VM group
AA
None
III
R xxxxx yyyyy
Operation
System
The system will interface with the External AA/VM based on database assignments.
Conditions
1. Selection of SMDI or in-band signaling can be alternated using the 2
nd
Virtual Dip switch.
2. Only one AA/VM Group (External, VSF, VMIM or Feature Server) can be defined in the system.
Multiple definitions may cause erroneous system operation.
Содержание IPECS
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