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VigorBX 2000 - Configuring Call Barring

Products:
VigorBX 2000
Keywords:
Anonymous
Block
Call Barring
PSTN
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The DrayTek VigorBX 2000 can block incoming and outgoing calls using the Call Barring function. This can be used to block based on specific prefixes or operate as a whitelist for outbound calls. This links to the schedule facility on the PBX system so that the call barring can be configured to operate only at specified times.


This guide demonstrates how to configure the following on the DrayTek VigorBX 2000:

  • Incoming Calls - An example of blocking incoming calls from specified numbers / prefixes of numbers and can be configured to apply only to specific trunks or all SIP / PSTN trunks. Please note that the PBX system can only bar calls that it can identify the number of, if the call is received as an anonymous call, or if using a PSTN Trunk line that does not have Caller ID enabled on it, the PBX system will not be able to block calls with the specified numbers
  • Outgoing Calls - How to block outbound calls either by blocking specific numbers or operating as a whitelist so that only specified numbers can be called. This can be set to apply to specific Extensions or to Groups by applying to a Hunt Group
  • Premium Rate Calls - An example of how to block calls to premium rate numbers that start with 09
  • Anonymous Calls - The VigorBX 2000 can block calls that do not have a caller ID using this facility
  • Scheduling Call Barring - A demonstration of how the Call Barring functionality can be scheduled
  • Block Unknown Domain - The PBX system can block SIP messages from unknown IP addresses / servers using this facility

To set up Call Barring for incoming calls, go to [IP PBX] > [Dial Plan] > [Call Barring]:

In the Call Barring Setup, click on the first available Index number:

In the Call Barring Index, configure these options:

  • Tick the Enable option to enable the entry
  • Set the Call Direction to IN so that this affects incoming calls
  • Set the Barring Type to Number so that the PBX system identifies the call based on the telephone number
  • Set the Number either as a whole number, or if setting a prefix, enter the number followed by a "?" character, which operates as a wildcard and allows the partial number to work as a prefix
  • Specify the Interface as the trunk that the block will apply to, or select All to apply the block to all PSTN and SIP trunks that the call could be received on

Click OK to save and apply the call barring configuration.

When the PBX system receives a call from a number that matches the number specified, the PBX will reject the call by giving a Busy response to the caller.

To set up Call Barring for outgoing calls, go to [IP PBX] > [Dial Plan] > [Call Barring]:

In the Call Barring Setup, click on the first available Index number:

In the Call Barring Index, configure these options:

  • Tick the Enable option to enable the entry
  • Set the Call Direction to OUT so that this affects outgoing calls
  • Set the Apply To option either as "All" to apply to all Extensions on the PBX, or select an Extension or Group here
  • Set the Barring Type to Number so that the PBX system identifies the call based on the telephone number
  • Set the Number either as a whole number, or if setting a prefix, enter the number followed by a "?" character, which operates as a wildcard and allows the partial number to work as a prefix
  • Specify the Interface as the trunk that the block will apply to, or select All to apply the block to all PSTN and SIP trunks that the call could be made from

Click OK to save and apply the Call Barring entry.


To specify a Whitelist instead, simply specify "?" as the Number and the Edit White List option will appear. Click that to specify the numbers (or prefixes such as "0208?") by clicking Add for each number then OK to save those numbers, then save the call barring entry.

To block calls to premium rate numbers, such as numbers starting with 09, go to [IP PBX] > [Dial Plan] > [Call Barring] and click on the first available Index number.

In the Call Barring Index, configure these options:

  • Tick the Enable option to enable the entry
  • Set the Call Direction to OUT so that this affects outgoing calls, or select IN & OUT to affect incoming and outgoing calls
  • Set the Apply To option either as "All" to apply to all Extensions on the PBX, or select an Extension or Group here
  • Set the Barring Type to Number so that the PBX system identifies the call based on the telephone number
  • Set the Number to "09?" so that any numbers that start with 09 will be blocked
  • Specify the Interface as the trunk that the block will apply to, or select All to apply the block to all PSTN and SIP trunks that the call could be received / made with

Click OK to save and apply the Call Barring entry.

The VigorBX 2000 can block incoming calls that are either unidentified by the PSTN Trunk lines or are identified as "anonymous" by the SIP provider / ITSP. To do that go to [IP PBX] > [Dial Plan] > [Call Barring]:

In there, select Block Anonymous:

Enable the option and the PBX will then block any calls that it cannot identify the number of:

Click OK to save and apply that setting change.

To schedule Call Barring, first of all configure a call barring entry as demonstrated in the other examples. This example will demonstrate how to apply a call barring entry from 00:00 to 08:00 then 18:00 to 11:59 to apply each day.

To configure and apply a schedule, first of all ensure that the PBX system's time is correct under [System Maintenance] > [Time and Date].

Once that has been confirmed to be correct, go to [Applications] > [Schedule] and click on the first available Index number link:

In the Schedule Index, set these options:

  • Tick Enable Schedule Setup
  • Set the Start Date to the desired date to start from, or leave it on its default setting (which this example shows)
  • Set the Start Time as the time that the schedule would start from. In this case, it starts at 00:00, midnight of each day
  • Set the Duration Time as the amount of time in hours : minutes that this schedule would apply for, which in this example is 8 hours and 0 minutes
  • Leave the Action set to its default of Force On
  • Under the How Often options, specify the days of the week this schedule would apply to

Click OK to save that schedule entry.


From the [Applications] > [Schedule] menu, select the next available Index number, in this case, Index No. 2:

Set these options:

  • Tick Enable Schedule Setup
  • Set the Start Date to the desired date to start from, or leave it on its default setting (which this example shows)
  • Set the Start Time as the time that the schedule would start from. In this case, it starts at 18:00, 6pm of each day
  • Set the Duration Time to 6 hours and 0 minutes so that the schedule applies until the PBX system's schedule timer restarts for the next day
  • Leave the Action set to its default of Force On
  • Under the How Often options, specify the days of the week this schedule would apply to

Click OK to save the schedule entry.


To apply the schedules to a Call Barring entry, go to [IP PBX] > [Dial Plan] > [Call Barring] and select the Call Barring Index number:

Specify the Index numbers of the schedule entries as they are shown in the Schedule list, in this case, index numbers 1 and 2 were configured so enter those numbers as shown.

Click OK to apply the new schedules. Please note that schedule entries will only begin from the start time, if they are applied after the start time of the schedule, the schedule entry will not take effect until the next time that the Start Time of the schedule entry occurs.

The VigorBX 2000 system is able to block call attempts from IP addresses or Domains not associated with a SIP Trunk configured on the PBX system. To do that, go to [IP PBX] > [Dial Plan] > [Call Barring]:

Select Block Unknown Domain:

Tick the Enable option to enable the blocking facility:

 

 


 

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