Classes of Service

Classes of Service can be found under Features - Classes of Service.

This feature allows you to bar Extensions from being able to call specific numbers or numbers starting with a particular area code. This helps reduce costs with expensive calls and can stop outbound call abuse. Several dialling codes, such as national numbers, start with 01 and 02. There are also non-geographic numbers that replaced 0845, which is the 03 range of numbers. Most mobiles begin with 07, but some personal numbers are more expensive to call. The 08 number range has a mixed charging method, which needs to be broken down. The 09 range is very expensive, and finally, numbers starting at 00 are international numbers, so these would generally be barred to reduce costs.

To simplify things, we have automatically generated a Class of Service, which we apply to any new Extension created on the system. This is to try and help with phone abuse. If aA telephone Extension is hacked, it is limited to UK calls only.only if it is hacked.

You should see this default Class of Service under Classes of Service. Clicking on it will take you to these default settings.

Some prefixes are already set asto ‘Forbid’, and others are set to ‘Allow’. If you want to make changes, we suggest making a copy of this Class of Service using the ‘make copy’ option at the bottom of the page. You can then apply this new Class of Service with your changes to the Extension.

This is how you create a new Class of Service from scratch.

Click ‘New’ on the bottom right-hand side of the page.

New Class of Service

Name
Give the Class of Service a name to help you select it under each Extension. In this example, we will put ‘No International except USA office.’
Description
You can provide some more details here, but this isn’t required.
Default for internal calls
This is set to Allow by default, but you can change it to Forbid. This will block any internal calls. Remember that you will not be able to transfer calls, etc. This would only be used if you had a cold-calling team ringing out and didn’t want them to talk to each other internally, for example.
Default for external calls
This is set to Allow by default, but you could change it to Forbid. This will block any external calls. This could be a good option if you had a handset in reception and wanted someone to dial an internal number.
Forward forbidden calls to
If this is left empty, the caller will hear a message. You could forward these calls to the manager's extension or a Feature Code and play another message to warn the caller about making calls they shouldn’t be making.

Once you have clicked save, select the new Class of Service and add your call-barring Numbers or Number Prefixes.

External Exceptions
Click ‘New’, and you can start to create your call bar.

You can create one for each destination prefix you want for the bar.

Call direction
You can also amend this option to bar particular internal numbers. This is usually left to external so that you can add external barring.
Number or prefix
Enter the number or prefix here. In our example, we are barring 00 for international calls.
Allow calls
The default is set to Allow, but you must change this to enable the prefix to be barred.

The USA office number has been entered but set to ‘Allow,’ even though it starts with the prefix we barred above. The system works out, and this call can still be made.

To enable this on an Extension, go to Features- Extensions and click on each telephone you wish to allow the new Class of Service. Alternatively, you can use the bulk change option at the bottom of the Extension page. The Class of Service tab on the Extension will only appear if there are Classes of Service created.

Other Options for this Class of Service
Make copy
Allows for a duplication of the Class of Service you are currently editing.
Notes
If you would like to store more information about this Class of Service, you can add notes under this section.