IPECS Release 5
Feature Description & Operation 5.0
2-81
2.38.2 In-band (DTMF) Signaling
Description
The system may employ in-band signaling to communicate with an External AA/VM system. When a
call is routed to the AA/VM SLT port, the system will send DTMF signals informing the AA/VM of the
characteristics of the call. DTMF digit strings are assigned to various functions allowing the AA/VM
to respond appropriately to the call. These definitions are entered in the “Voice Mail Dialing Table”
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, VMIM/VSF or Feature Server) can be defined in the system.
Multiple definitions may cause erroneous system operation.
Programming
STATION GROUPS 1. Station Group Assignment (PGM 190)
2. Station Group Attributes (PGM 191)
T
ABLES 1. Voice Mail Dialing Table (PGM 234)
D
IP SWITCH 1. Virtual Dip Switch (PGM 453-Btn 2)
Related Features
AA/VM Group
SMDI (Simplified Msg Desk Interface)
Auto Call Recording
Two-Way Record
Hardware
External AA/VM system
2.38.3 SMDI (Simplified Msg Desk Interface)
Description
The system may employ SMDI (Simplified Message Desk Interface) protocol to communicate with an
adjunct AA/VM system. When a call is routed to an AA/VM SLT port, the system will send SMDI
messages over the assigned SMDI RS-232 port, informing the AA/VM of the characteristics of the
call.
SMDI Protocol
There are three types of SMDI messages. Within each message is an “Action Code”, which defines
the function or required action of the AA/VM system. Fields within the messages also define the
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