Extension Numbers
Extensions typically start with the number 2-8 and can be two, three, four or more digits in length. You will have to define extensions for some or all of the following devices and features:- Telephone sets
- Ring groups (groups of telephone sets that can be used as a destination for incoming calls)
- Page groups (groups of telephone sets that can be paged together)
- Parking lot (a range of extensions available for parking of calls)
Telephone extensions require one license for each extension programmed in the system. Extension numbers for features such as ring groups, page groups, virtual extensions, conference bridges or parking lot do not require licenses.
Inbound Routes
The UCX system is extremely flexible when it comes time to terminate an inbound call. Calls can be terminated based on the DID or Call ID information transmitted to the system from the central office that is providing the Inbound Route service. There are several services that can be used to terminate an inbound call, such as Time of Day controls, Day/Night Controls, Ring Groups, IVR menus, Contact Center Queues and others.
Outbound Routes
Historically outbound routes have been accessed by dialing an access code (typically 9) followed by the number to be called. The UCX system allows an access code to be dialed followed by the number to be called. Alternatively, outbound routes can be accessed just by dialing the number.
If for example the digit 1 is required to dial a telephone number as long distance, a route can be setup to require the user to dial the 1. The UCX system can also make calling out simpler for the user by inserting the 1 into the dialing string on those calls that require long distance service. Also, PIN codes can be used to limit access to outbound routes.
Feature Codes
There are over 50 features that are available to users of the UCX system. These features are accessed via feature codes. The vast majority of these feature codes begins with an asterisk (*) followed by a string of digits. Feature access codes can be modified to fit into your custom numbering plan. For details on how to configure feature access codes and how to use these features please refer to the appropriate section of this manual.
The following table provides a list of numbering plan related parameters that you should prepare:
Parameter | Selected Value |
|---|---|
| Extension number length | ____ |
| Telephone extension numbers – range | ________ – ________ |
| Ring group extension numbers – range | ________ – ________ |
| Page group extension numbers – range | ________ – ________ |
| Parking lot – extension / number of slots | ________ / ________ |
| Inbound route DID’s – range | ________________ – ________________ |
| Outbound route access code(s) | ________________ |
Numbering Plan Overview
There is a Numbering Plan page provided under the PBX Configuration tab that gives the administrator an overall view of the dialable numbers configured in the system. This is a useful planning tool for the administrator. For details please see Numbering Plan.