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A-6 Issue 2.0 December 1995
■ Passwords must not be programmed into auto-dial buttons. Violation will
result in an entry in the employees permanent personnel record.
■ If subscribers receive any strange voice mail messages, find that their
greeting or password has been changed, or suspect for any reason that
their voice mailbox is being used by someone else, they should contact
the System Administrator immediately.
Switch Administration
The measures you can take to minimize the security risk of owning a
telecommunications system depend on how the telecommunications system is
used and how any associated voice messaging or automated attendant system
is used.
To minimize the risk of unauthorized persons using the voice messaging or
automated attendant systems to make toll calls, administer the voice ports on
your switch in any of the following ways:
Restrict Outward Dialing
A voice port with outward restriction cannot make
any
outside calls unless an
allowed number list is used for specific area codes and/or exchanges that can
be called. Outward restriction prevents or limits outcalling and AMIS networking.
Restrict Toll Areas
A voice port with toll restriction cannot make toll calls, but it can still make local
calls. Toll restriction may prevent or limit outcalling and AMIS networking. An
allowed number list can be used for specific area codes and/or exchanges that
can be called.
Create Disallowed Number Lists
When a voice port is unrestricted, or has toll restriction, a disallowed number list
can be used to prevent calls to specific numbers, specific exchanges within all
area codes, or specific numbers. There can be a maximum of eight disallowed
lists in the MERLIN LEGEND system with a maximum of ten numbers on each list.
Each voice port can be assigned any or all of the disallowed number lists.
Create Allowed Number Lists
When a voice port is outward or toll restricted, an allowed number list can be
used to allow calls to specific area codes and/or exchanges. When outcalling or
AMIS networking is required, using outward or toll restriction in combination with
an allowed number list limits the risk of unauthorized persons using the voice
messaging or automated attendant systems to make toll calls because calls can
only be made to the specified area codes and/or exchanges.There can be a