NetComm Gateway Series manual Long-Distance Control Table, Long Distance Exception Table

Long-Distance Control Table

This table controls the level of authority of an outgoing (transit out) call that is dialed through FXO and diverted to PSTN, as below:

Descriptions:

•Digit strings in this table are prefixes that the gateway will check on dialed numbers in transit out calls.

•This table is used to prohibit dialing any numbers started with specified prefixes.

•If Level 0 (the highest level) is set to prohibit dialing any number started with prefix 0204, then any level below 0 (including Levels 1 to 5) are also prohibited.

•If Level 1 is set to prohibit dialing any number with prefix 0, then any level below 1 (including Levels 2 to 5) are also prohibited. Since Level 0 is not restricted to any prefix, therefore at level 0 users can dial a number with the prefix 0.

Principle: Downward Restriction —If users at a higher level cannot dial a number with a certain prefix, then users at lower levels also cannot dial a number with the same prefix.

Long Distance Exception Table

This table handles any exceptions to the long-distance call table.

Instruction:

•According to the Long Distance Control Table, users at Level 0 are prohibited from dialing a number with the prefix 0204. But, if the number 020488988 is set in the Exception Table as above, then users can dial this number.

Principle: Upward Opening — If the users at a lower level can dial a number with a certain prefix, then the users at higher levels can also dial a number with the same prefix.

SmartVoice Gateway(s) User Guide	49
YML832 Rev2