MicroNet Technology VOIP FXO SP5054A/S - Manual (Page 15)

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1.9 Prefix Configuration
The Prefix function is using the drop and inserts function.
Parameter Description:
z Index: The list number of the Phone Book
z Prefix: The prefix number of the whole numbers that could be into
this gateway
z Drop: The drop function. Enable this function by the Enable button;
Disable this function by the Disable button
z Insert: The insert function. Users could enter the digits that you want
to insert in this number
z Add Data: Press this button if users fill the entire information table
above
z Delete Date: If users want to delete the record from the table, enter
the index number first and press this button. The record will be
deleted
This function is just like the Phone Book configuration. But it will make the
drop and insert function in the GK routed mode. All the numbers into this
gateway will check out the prefix table first and find out the destination in
the Routing Table.
There is an example about the configuration, please follow up these steps.