Chapter 11: Planning Applications and Services Voice Mail
ShoreTel 8 Planning and Installation Guide 141
The enhanced Distributed Voice Mail services bring a new level of availability to existing
remote servers and allow additional deployment of remote servers up to a system total of
20 remote servers.
11.3.5 AMIS Protocol Support
The ShoreTel 8 system can send and receive voice mail messages to and from legacy voice
mail systems using the AMIS protocol Version 1 - Specification; February 1992. To send
voice mail messages to remote AMIS sites, ShoreTel 8 dials the access phone number for the
remote system. Likewise, to receive voice messages from a remote system, the remote
system must know the number to dial into the ShoreTel 8 system. To reach the ShoreTel 8
system, the remote system must be configured to dial any number that reaches an auto-
attendant menu.
AMIS call support is enabled by default. Incoming AMIS voice mail is delivered in the same
manner as other voice mail; however, replies cannot be sent. To send outbound AMIS voice
mail, you must create AMIS systems in ShoreWare Director.
ShoreTel 8 negotiates the setup, handshaking, and teardown of AMIS system calls. Each
voice mail requires a call over the AMIS delivery and call-back numbers.
To simplify AMIS systems, and increase usability:
Use the same extension length across your enterprise.
Use off system extensions to match remote users’ mail boxes with their extension
numbers.
To identify the remote site location, assign each system a System ID.
For more information on AMIS systems, see the ShoreTel 8 Administration Guide.
11.3.6 SMDI Protocol Support
The ShoreTel 8 system supports the SMDI protocol. Two modes of operation are supported:
In the first mode of operation, the ShoreTel system acts as a PBX for a legacy voice
mail system. The ShoreTel 8 system provides call information for forwarded or
direct calls to the legacy voice mail system, and receives incoming message waiting
indication from the legacy voice mail system.
In the second mode of operation, the ShoreTel system acts as the voice mail system
for a number of users on a legacy PBX.
Both configurations require a serial link between a ShoreTel server and the legacy voice
mail system, as this is the medium required by the SMDI protocol.
If using the first mode mentioned above, a group of analog trunks must be used to connect
the ShoreTel system to the legacy voice mail system (the ShoreTel system is on the
extension side of the trunks). The ShoreTel voice mail application manages the group of
outgoing extensions. The ShoreTel server can provide digit translation if the legacy voice
mail and ShoreTel system have different extension lengths.
It is possible to have some ShoreTel users on the ShoreTel voice mail and some on the
legacy voice mail. However, these users will not be able to send messages to each other
unless AMIS is implemented between the two systems. Voice mailboxes for workgroups
and agents must be on the ShoreTel voice mail system.
The Personal Call Manager (PCM) operates the same way it does when a user has no
mailbox:
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