LG IPECS - Page 97

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, control + 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.