Specifications

Planning Applications and Services
11 – 4 ShoreTel, Inc.
Distributed Voice Mail
ShoreTel 6.1 has Distributed Voice Mail to provide greater availability. Each ShoreWare
Remote Server has an instance of the telephony platform, allowing full functionality of
voice mail and auto-attendant services at that location during WAN outages. The
Distributed Voice Mail feature allows users with mailboxes on that server to receive and
pickup voice mail messages without having to depend on a WAN connection to the
headquarters server that hosts the configuration database. The message waiting
indicator (MWI) lights correctly update local users about voice mail with or without
WAN connectivity.
Additionally, incoming calls reach the auto-attendant, access the dial-by-name
directory, and reach their intended local party during a WAN outage. If a party cannot
be reached directly and his call handling setting would send unanswered calls to voice
mail, the call is handled by the local voice mail server. The caller hears a generic
greeting including the intended party's recorded name and the caller has the option to
leave a message. This message will be forwarded at a later time to the home voice mail
server for the addressee via SMTP.
Although each voice mail server is autonomous in delivering voice services, it must
have connectivity to the headquarters server in order to carry out configuration
changes. Specifically, users on an isolated remote server are not able to change call
handling modes or make other changes that require modification to the configuration
database on the headquarters server.
The Call Manager applications do not provide call control access and display contents
of IP phones are not updated at a remote site during a WAN outage. These both require
connectivity to the headquarters server. However, for users who have their Call
Manager application running at the time of a WAN outage, graphical access to their
voice mail box is provided, including the ability to compose and playback messages.
However, their Call Manager does not show the corresponding call activity associated
with any actions.
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.
AMIS Protocol Support
The ShoreTel 6.1 system can send and receive voice mail messages to and from legacy
voice mail systems using AMIS protocol Version 1 - Specification February 1992. To
send voice mail messages to remote AMIS sites, ShoreTel 6.1 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 6.1 system.
To reach the ShoreTel 6.1 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 6.1 negotiates the setup, handshaking, and teardown of AMIS system calls.
Each voice mail requires a call over the AMIS delivery and call-back numbers.