Simple Menu Funlet

This Twilio Function is based on the Twimlet of the same name.

It can be used as a drop-in replacement for the Twimlet, by using the URL of the Twilio Function as a webhook with the same GET parameters.

Alternatively, it can be customized by setting properties in the environment. GET and POST parameters are considered first, if provided, then environment properties, then config properties declared in the script.

Environment properties are most convenient when you are using a single instance of this script in your account. To customize multiple instances, the recommended way is to modify the script parameters in the config object, directly in the script.

Stages

The Simple Menu Funlet has two stages:

Stage	Addressing	Description
1	Caller	Welcome the caller and gather digits
2	Caller	Redirect to the matching option, if any

These two stages would typically be implemented in two separate Twilio Functions. In the Simple Menu Funlet, they are running in two separate instances of the same Twilio Function. This is in line with the original Simple Menu Twimlet, which implemented both stages in the same script.

Input

Message

Text string, a recording URL or a text to say. (A string starting with 'http' is considered to be a URL)

1. Event: Message parameter
2. Environment: FUNLET_MENU_MESSAGE environment property
3. Script: message config property

Error Message (Stage 2)

Text string, a recording URL or a text to say when the digits pressed do not match any option. For a text message, the same language and voice will be used as for the message in stage 1.

1. Event: ErrorMessage parameter
2. Environment: FUNLET_MENU_ERROR_MESSAGE environment property
3. Script: errorMessage config property

Language

Text string, language code for text messages, e.g. 'en' or 'en-gb'. Defaults to 'en': English with an American accent.

1. Event: Language parameter
2. Environment: FUNLET_MENU_LANGUAGE environment property
3. Script: language config property

Voice

Text string, voice for text messages, one of 'man', 'woman' or 'alice'. Defaults to 'alice', who speaks in a large selection languages.

1. Event: Voice parameter
2. Environment: FUNLET_MENU_VOICE environment property
3. Script: voice config property

Options

A list of action URLs to redirect to when the matching digits are input. The digits are assigned by setting a custom key for the array index, for example: Options[42]=http://example.com/action associates the action URL http://example.com/action with the digits 42.

Note that when no key is assigned, as in Options[]=//example.com/action, a sequence of digits starting with 0, not 1, will be associated with each option.

1. Event: a list of Options[digits]=URL parameters: e.g. Options[1]=...&Options[2]=...&Options[101]=... or a single Options=URL string parameter, associated with digit 0.
2. Environment: up to 10 action URL and matching digits, each in a separate environment property:

• FUNLET_MENU_OPTION1_URL and FUNLET_MENU_OPTION1_DIGITS
• FUNLET_MENU_OPTION2_URL and FUNLET_MENU_OPTION2_DIGITS
• ...
• FUNLET_MENU_OPTION9_URL and FUNLET_MENU_OPTION9_DIGITS
• FUNLET_MENU_OPTION0_URL and FUNLET_MENU_OPTION0_DIGITS If the environment property for an option URL is set without the environment property for the matching digits, the digits default to the number of the option: 1, 2, ..., 9, 0.

3. Script: options config property with key/values for digits/URLs

Digits (Stage 2)

Text string, list of digits pressed.

1. Event: Digits property provided by <Gather>

Output

This Twilio Function returns TwiML instructions for Twilio Voice.