3.3 Customising Your PBX (System Programming)
• WARNING
There is a risk that fraudulent telephone calls will be made using the
The cost of such calls will be billed to the owner/renter of the PBX.
To protect the PBX from this kind of fraudulent use, we strongly recommend:
a)Enabling DISA security (Trunk Security or All Security).
b)Keeping DISA security codes secret.
c)Selecting complex, random codes that cannot be easily guessed.
d)Changing codes regularly.
•Security code numbers (not security codes) are logged by Station Message Detail Recording (SMDR).
•The number of digits required for DISA security codes can be assigned in DISA Security Code Digits [530].
DISA Security Code Digits [530]
You can select the number of digits used for DISA security codes assigned in DISA Security Code [512].
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5 | 3 | 0 | NEXT | SELECT | STORE | END |
| Enter 530. |
| Press NEXT. | Press SELECT | Press STORE. | Press END. |
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• When this setting is changed, all assigned DISA security codes are cleared.
142 User Manual
