AT&T MERLIN LEGEND Release 3.0 System Programming Manual page 708

Customer Support Information
Use the Hybrid/PBX or Key system administration capability to do the
following:
— Block direct access to outgoing lines and force the use of account
codes/authorization codes.
— Disallow trunk-to-trunk transfer unless required.
— Assign toll restriction levels to all AUDIX Voice Power ports or other
voice mail ports.
— If you do not need to use the Outcalling feature, completely restrict
the outward calling capability of the AUDIX Voice Power ports. Use
voice mail application features to do this.
Monitor SMDR reports or Call Accounting System reports for outgoing
calls that might be originated by AUDIX Voice Power ports or other voice
mail ports.
Remote Administration and
Maintenance
The Remote Administration and Maintenance feature of your
telecommunications system, if you choose to use it, permits users to change the
system features and capabilities from a remote location.
The Remote Administration and Maintenance feature, through proper
administration, can help you reduce the risk of unauthorized persons gaining
access to the network. However, telephone numbers and access codes can be
compromised when overheard in a public location, are lost through theft of a
wallet or purse containing access information, or through carelessness (for
example, writing codes on a piece of paper and improperly discarding them).
Additionally, hackers may use a computer to dial an access code and then
publish the information to other hackers. Substantial charges can accumulate
quickly. It is your responsibility to take appropriate steps to implement the
features properly, evaluate and administer the various restriction levels, and
protect and carefully distribute access codes.
Under applicable tariffs, you will be responsible for payment of toll charges.
AT&T cannot be responsible for such charges and will not make any allowance
or give any credit resulting from unauthorized access.
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System Programming