Security - Toshiba IP edge General Description Manual

Nodes can be geographically distributed in various configurations. Each node contains the
complete database for the entire cluster, and the Messaging application residing on each node only
uses the local copy of the database. Each node is identified by a Node ID. In addition all files,
including system greetings, user greetings and messages can be replicated to all nodes (standard
cluster) or replicated to a designated subset of nodes (hybrid cluster), depending on cluster size
and network capability.
Functional Considerations
Although DCN provides a robust voice mail survivability solution, there are some functional
considerations that need to be understood and communicated to customer users.
• If a telephone has a Message Waiting Indicator (MWI) illuminated and the system that supports
that telephone fails, the MWI will not be reinstated until another new message is received. The
telephone survives over to another system that is in the cluster and has its mailbox intact, but
the Message Waiting light will not light until a new message is received.
• The voice mail hunt group pilot number should be the same on the different nodes. If the voice
mail hunt group pilot number is different on the different nodes incorrect voice mail forwarding
after a node failure will occur. For example, station 201 on IPedge Node 11 (DCN Node 1) is
set to system call forward to voicemail hunt group pilot 300. The DNs on IPedge Node 12
(DCN Node 2) are set to system call forward to voicemail hunt group pilot 400. If IPedge Node
11 fails and station 201 re-registers with IPedge Node 12, station 201 will not properly forward
to voicemail when a call is presented to it.
Note The Messaging application must be running on every IPedge system that will run DCN.

Security

Limited Dial-Out Digits
A limited number of digits are allowed in a dial-out according to class of service to prevent
international toll fraud.
Limited Password Entry Attempts
When a certain number of password entry attempts per call is detected, the Messaging will
immediately hang up the call to prevent automated dialers which try to expose passwords by
"brute force" attacks.
Mailbox Lock and Administrator Notification
When a certain number of password entry attempts per mailbox is detected Messaging locks the
mailbox to prevent further use and notifies the system administrator via email.
Secure Authentication for Outgoing Email
Outgoing emails sent from Messaging are SSL encrypted and can be configured to use secure
authentication.
IPedge General Description 03/16
Features
Messaging
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