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Appendix C: Dial Plan and Auto-Attendant Scripting for Advanced Users
Configuring the Auto-Attendant
IP Telephony System
The System can store up to 94.5 seconds of audio, excluding the default messages (Prompts 1-4). The maximum
length of any message is one minute. The recorded messages will be encoded with G711U and saved in flash
memory. Status information for these messages is found in the Auto-Attendant Prompt Status section of the
Voice - Info screen of the Web-based Utility.
Each message is internally referred to as Prompt x, x being a number ranging from 1 to 10. You can customize the
default prompts and add six additional prompts. When you reset the System to its factory default settings,
customized messages will be erased, and prompts 1-4 will be restored to their default messages:
Customizing the Auto-Attendant
You have many parameters you can change to customize the auto-attendant. One of the most important
parameters is the script, or set of instructions, that the auto-attendant executes when it is running. The next
section will explain how to use XML scripting grammar.
The AA Scripts Parameters and XML Scripting
The System lets you use XML scripting grammar to define the auto-attendant instructions. You have a choice of
three scripts, which are stored in the AA script 1-3 parameters on the Voice - SIP screen of the Web-based Utility.
The instructions must be defined or encapsulated in a <form> structure. You may have multiple <form>
structures within a script that the auto-attendant can transfer to, based on user input.
The XML scripting grammar supports two types of <form> structures, node and menu. The main difference
between the two types is that within the node type, user input cannot be processed—only actions may be
specified. The format of the node type is as follows:
<form id="form-id" type="node">
<!--audio instruction (optional) -->
<!--action instruction pair (mandatory) -->
</form>
Table 3: Default Auto-Attendant Prompts
Prompt ID Default Audio Message
1 “If you know your party’s extension, you may enter it now.”
2 “Your call has been forwarded.”
3 “Not a valid extension, please try again.”
4“Goodbye.”
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