# Plum DEV Documentation

## Plum DEV Documentation

- [Plum DEV Documentation](https://docs.plumvoice.com/dev/master.md)
- [Overview](https://docs.plumvoice.com/dev/overview.md)
- [Tutorial](https://docs.plumvoice.com/dev/developer-reference/tutorial.md)
- [How to...](https://docs.plumvoice.com/dev/developer-reference/how-to.md)
- [Use Plum's Transcription API](https://docs.plumvoice.com/dev/developer-reference/how-to/use-plums-transcription-api.md)
- [Audio Formats and Prompts](https://docs.plumvoice.com/dev/developer-reference/audio-formats-and-prompts.md)
- [Grammars and Speech Recognition](https://docs.plumvoice.com/dev/developer-reference/grammars-and-speech-recognition.md)
- [Available ASR Engines](https://docs.plumvoice.com/dev/developer-reference/available-asr-engines.md)
- [TTS Engine Characteristics](https://docs.plumvoice.com/dev/developer-reference/tts-engine-characteristics.md)
- [Amazon Polly TTS Engine](https://docs.plumvoice.com/dev/developer-reference/tts-engine-characteristics/amazon-polly-tts-engine.md)
- [Polly Voice Tag Attribute Details](https://docs.plumvoice.com/dev/developer-reference/tts-engine-characteristics/amazon-polly-tts-engine/polly-voice-tag-attribute-details.md)
- [AT\&T Natural Voices](https://docs.plumvoice.com/dev/developer-reference/tts-engine-characteristics/at-and-t-natural-voices.md)
- [Cepstral Engine](https://docs.plumvoice.com/dev/developer-reference/tts-engine-characteristics/cepstral-engine.md)
- [RealSpeak Engine](https://docs.plumvoice.com/dev/developer-reference/tts-engine-characteristics/realspeak-engine.md)
- [Vocalizer 7](https://docs.plumvoice.com/dev/developer-reference/tts-engine-characteristics/vocalizer-7.md)
- [Vocalizer 7: \<voice> tag and SSML Support](https://docs.plumvoice.com/dev/developer-reference/tts-engine-characteristics/vocalizer-7/vocalizer-7-less-than-voice-greater-than-tag-and-ssml-support.md): For Vocalizer 7
- [Data Exchange](https://docs.plumvoice.com/dev/developer-reference/data-exchange.md)
- [Logging](https://docs.plumvoice.com/dev/developer-reference/logging.md)
- [Caching](https://docs.plumvoice.com/dev/developer-reference/caching.md)
- [Root Documents](https://docs.plumvoice.com/dev/developer-reference/root-documents.md)
- [Tags](https://docs.plumvoice.com/dev/voicexml/tags.md)
- [\<assign>](https://docs.plumvoice.com/dev/voicexml/tags/assign-tag.md)
- [\<audio>](https://docs.plumvoice.com/dev/voicexml/tags/audio-tag.md)
- [\<block>](https://docs.plumvoice.com/dev/voicexml/tags/block-tag.md)
- [\<break>](https://docs.plumvoice.com/dev/voicexml/tags/break-tag.md)
- [\<catch>](https://docs.plumvoice.com/dev/voicexml/tags/catch-tag.md)
- [\<choice>](https://docs.plumvoice.com/dev/voicexml/tags/choice-tag.md)
- [\<clear>](https://docs.plumvoice.com/dev/voicexml/tags/clear-tag.md)
- [\<data>](https://docs.plumvoice.com/dev/voicexml/tags/data-tag.md)
- [\<desc>](https://docs.plumvoice.com/dev/voicexml/tags/desc-tag.md)
- [\<disconnect>](https://docs.plumvoice.com/dev/voicexml/tags/disconnect-tag.md)
- [\<else>](https://docs.plumvoice.com/dev/voicexml/tags/else-tag.md)
- [\<elseif>](https://docs.plumvoice.com/dev/voicexml/tags/elseif-tag.md)
- [\<emphasis>](https://docs.plumvoice.com/dev/voicexml/tags/emphasis-tag.md)
- [\<enumerate>](https://docs.plumvoice.com/dev/voicexml/tags/enumerate-tag.md)
- [\<error>](https://docs.plumvoice.com/dev/voicexml/tags/error-tag.md)
- [\<example>](https://docs.plumvoice.com/dev/voicexml/tags/example-tag.md)
- [\<exit>](https://docs.plumvoice.com/dev/voicexml/tags/exit-tag.md)
- [\<field>](https://docs.plumvoice.com/dev/voicexml/tags/field-tag.md)
- [\<filled>](https://docs.plumvoice.com/dev/voicexml/tags/filled-tag.md)
- [\<foreach>](https://docs.plumvoice.com/dev/voicexml/tags/foreach-tag.md)
- [\<form>](https://docs.plumvoice.com/dev/voicexml/tags/form-tag.md)
- [\<goto>](https://docs.plumvoice.com/dev/voicexml/tags/goto-tag.md)
- [\<grammar>](https://docs.plumvoice.com/dev/voicexml/tags/grammar-tag.md)
- [\<help>](https://docs.plumvoice.com/dev/voicexml/tags/help-tag.md)
- [\<if>](https://docs.plumvoice.com/dev/voicexml/tags/if-tag.md)
- [\<initial>](https://docs.plumvoice.com/dev/voicexml/tags/initial-tag.md)
- [\<item>](https://docs.plumvoice.com/dev/voicexml/tags/item-tag.md)
- [\<lexicon>](https://docs.plumvoice.com/dev/voicexml/tags/lexicon-tag.md)
- [\<link>](https://docs.plumvoice.com/dev/voicexml/tags/link-tag.md)
- [\<log>](https://docs.plumvoice.com/dev/voicexml/tags/log-tag.md)
- [\<mark>](https://docs.plumvoice.com/dev/voicexml/tags/mark-tag.md)
- [\<menu>](https://docs.plumvoice.com/dev/voicexml/tags/menu-tag.md)
- [\<meta>](https://docs.plumvoice.com/dev/voicexml/tags/meta-tag.md)
- [\<metadata>](https://docs.plumvoice.com/dev/voicexml/tags/metadata-tag.md)
- [\<noinput>](https://docs.plumvoice.com/dev/voicexml/tags/noinput-tag.md)
- [\<nomatch>](https://docs.plumvoice.com/dev/voicexml/tags/nomatch-tag.md)
- [\<one-of>](https://docs.plumvoice.com/dev/voicexml/tags/one-of-tag.md)
- [\<option>](https://docs.plumvoice.com/dev/voicexml/tags/option-tag.md)
- [\<paragraph>](https://docs.plumvoice.com/dev/voicexml/tags/paragraph-tag.md)
- [\<param>](https://docs.plumvoice.com/dev/voicexml/tags/param-tag.md)
- [\<phoneme>](https://docs.plumvoice.com/dev/voicexml/tags/phoneme-tag.md)
- [\<prompt>](https://docs.plumvoice.com/dev/voicexml/tags/prompt-tag.md)
- [\<property>](https://docs.plumvoice.com/dev/voicexml/tags/property-tag.md)
- [\<prosody>](https://docs.plumvoice.com/dev/voicexml/tags/prosody-tag.md)
- [\<record>](https://docs.plumvoice.com/dev/voicexml/tags/record-tag.md)
- [\<reprompt>](https://docs.plumvoice.com/dev/voicexml/tags/reprompt-tag.md)
- [\<return>](https://docs.plumvoice.com/dev/voicexml/tags/return-tag.md)
- [\<rule>](https://docs.plumvoice.com/dev/voicexml/tags/rule-tag.md)
- [\<ruleref>](https://docs.plumvoice.com/dev/voicexml/tags/ruleref-tag.md)
- [\<say-as>](https://docs.plumvoice.com/dev/voicexml/tags/say-as-tag.md)
- [\<script>](https://docs.plumvoice.com/dev/voicexml/tags/script-tag.md)
- [\<sentence>](https://docs.plumvoice.com/dev/voicexml/tags/sentence-tag.md)
- [\<speak>](https://docs.plumvoice.com/dev/voicexml/tags/speak-tag.md)
- [\<sub>](https://docs.plumvoice.com/dev/voicexml/tags/sub-tag.md)
- [\<subdialog>](https://docs.plumvoice.com/dev/voicexml/tags/subdialog-tag.md)
- [\<submit>](https://docs.plumvoice.com/dev/voicexml/tags/submit-tag.md)
- [\<tag>](https://docs.plumvoice.com/dev/voicexml/tags/tag-tag.md)
- [\<throw>](https://docs.plumvoice.com/dev/voicexml/tags/throw-tag.md)
- [\<token>](https://docs.plumvoice.com/dev/voicexml/tags/token-tag.md)
- [\<transfer>](https://docs.plumvoice.com/dev/voicexml/tags/transfer-tag.md)
- [\<value>](https://docs.plumvoice.com/dev/voicexml/tags/value-tag.md)
- [\<var>](https://docs.plumvoice.com/dev/voicexml/tags/var-tag.md)
- [\<voice>](https://docs.plumvoice.com/dev/voicexml/tags/voice-tag.md)
- [\<vxml>](https://docs.plumvoice.com/dev/voicexml/tags/vxml-tag.md)
- [Properties](https://docs.plumvoice.com/dev/voicexml/properties.md)
- [audiofetchhint](https://docs.plumvoice.com/dev/voicexml/properties/audiofetchhint.md)
- [audiomaxage](https://docs.plumvoice.com/dev/voicexml/properties/audiomaxage.md)
- [audiomaxstale](https://docs.plumvoice.com/dev/voicexml/properties/audiomaxstale.md)
- [bargein](https://docs.plumvoice.com/dev/voicexml/properties/bargein.md)
- [bargeintype](https://docs.plumvoice.com/dev/voicexml/properties/bargeintype.md)
- [certverifypeer](https://docs.plumvoice.com/dev/voicexml/properties/certverifypeer.md)
- [completetimeout](https://docs.plumvoice.com/dev/voicexml/properties/completetimeout.md)
- [confidencelevel](https://docs.plumvoice.com/dev/voicexml/properties/confidencelevel.md)
- [datafetchhint](https://docs.plumvoice.com/dev/voicexml/properties/datafetchhint.md)
- [datamaxage](https://docs.plumvoice.com/dev/voicexml/properties/datamaxage.md)
- [datamaxstale](https://docs.plumvoice.com/dev/voicexml/properties/datamaxstale.md)
- [documentfetchhint](https://docs.plumvoice.com/dev/voicexml/properties/documentfetchhint.md)
- [documentmaxage](https://docs.plumvoice.com/dev/voicexml/properties/documentmaxage.md)
- [documentmaxstale](https://docs.plumvoice.com/dev/voicexml/properties/documentmaxstale.md)
- [fetchaudio](https://docs.plumvoice.com/dev/voicexml/properties/fetchaudio.md)
- [fetchaudiodelay](https://docs.plumvoice.com/dev/voicexml/properties/fetchaudiodelay.md)
- [fetchaudiominimum](https://docs.plumvoice.com/dev/voicexml/properties/fetchaudiominimum.md)
- [fetchtimeout](https://docs.plumvoice.com/dev/voicexml/properties/fetchtimeout.md)
- [grammarfetchhint](https://docs.plumvoice.com/dev/voicexml/properties/grammarfetchhint.md)
- [grammarmaxage](https://docs.plumvoice.com/dev/voicexml/properties/grammarmaxage.md)
- [grammarmaxstale](https://docs.plumvoice.com/dev/voicexml/properties/grammarmaxstale.md)
- [incompletetimeout](https://docs.plumvoice.com/dev/voicexml/properties/incompletetimeout.md)
- [inputmodes](https://docs.plumvoice.com/dev/voicexml/properties/inputmodes.md)
- [interdigittimeout](https://docs.plumvoice.com/dev/voicexml/properties/interdigittimeout.md)
- [logging](https://docs.plumvoice.com/dev/voicexml/properties/logging.md)
- [maxnbest](https://docs.plumvoice.com/dev/voicexml/properties/maxnbest.md)
- [maxspeechtimeout](https://docs.plumvoice.com/dev/voicexml/properties/maxspeechtimeout.md)
- [normalizeaudio](https://docs.plumvoice.com/dev/voicexml/properties/normalizeaudio.md)
- [recordcall](https://docs.plumvoice.com/dev/voicexml/properties/recordcall.md)
- [recordcallappend](https://docs.plumvoice.com/dev/voicexml/properties/recordcallappend.md)
- [recordutterance](https://docs.plumvoice.com/dev/voicexml/properties/recordutterance.md)
- [recordutterancetype](https://docs.plumvoice.com/dev/voicexml/properties/recordutterancetype.md)
- [scriptfetchhint](https://docs.plumvoice.com/dev/voicexml/properties/scriptfetchhint.md)
- [scriptmaxage](https://docs.plumvoice.com/dev/voicexml/properties/scriptmaxage.md)
- [scriptmaxstale](https://docs.plumvoice.com/dev/voicexml/properties/scriptmaxstale.md)
- [sensitivity](https://docs.plumvoice.com/dev/voicexml/properties/sensitivity.md)
- [speedvsaccuracy](https://docs.plumvoice.com/dev/voicexml/properties/speedvsaccuracy.md)
- [termchar](https://docs.plumvoice.com/dev/voicexml/properties/termchar.md)
- [termmaxdigits](https://docs.plumvoice.com/dev/voicexml/properties/termmaxdigits.md)
- [termtimeout](https://docs.plumvoice.com/dev/voicexml/properties/termtimeout.md)
- [timeout](https://docs.plumvoice.com/dev/voicexml/properties/timeout.md)
- [universals](https://docs.plumvoice.com/dev/voicexml/properties/universals.md)
- [voicegender](https://docs.plumvoice.com/dev/voicexml/properties/voicegender.md)
- [voicename](https://docs.plumvoice.com/dev/voicexml/properties/voicename.md)
- [Application and Session Variables](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables.md)
- [application.lastresult$\[i\].confidence](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/application.lastresultusd-i-.confidence.md)
- [application.lastresult$\[i\].inputmode](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/application.lastresultusd-i-.inputmode.md)
- [application.lastresult$\[i\].interpretation](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/application.lastresultusd-i-.interpretation.md)
- [application.lastresult$\[i\].recording](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/application.lastresultusd-i-.recording.md)
- [application.lastresult$\[i\].recordingduration](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/application.lastresultusd-i-.recordingduration.md)
- [application.lastresult$\[i\].recordingsize](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/application.lastresultusd-i-.recordingsize.md)
- [application.lastresult$\[i\].utterance](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/application.lastresultusd-i-.utterance.md)
- [session.callrecording](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/session.callrecording.md)
- [session.id](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/session.id.md)
- [session.telephone.ani](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/session.telephone.ani.md)
- [session.telephone.dnis](https://docs.plumvoice.com/dev/voicexml/application-and-session-variables/session.telephone.dnis.md)
- [VoiceXML Resources](https://docs.plumvoice.com/dev/voicexml/other-resources.md)
- [Using the Plum DEV site](https://docs.plumvoice.com/dev/plum-dev-guide/untitled.md)
- [Using the File Repository](https://docs.plumvoice.com/dev/plum-dev-guide/using-the-file-repository.md)
- [Outbound Calling Guide](https://docs.plumvoice.com/dev/plum-dev-guide/outbound-calling-guide.md)
- [Using the Outbound Tools in the DEV web UI](https://docs.plumvoice.com/dev/plum-dev-guide/outbound-calling-guide/using-the-outbound-tools.md)
- [DEV Outbound Programming Notes](https://docs.plumvoice.com/dev/plum-dev-guide/outbound-calling-guide/dev-outbound-programming-notes.md)
- [Outbound FAQs and Tips](https://docs.plumvoice.com/dev/plum-dev-guide/outbound-calling-guide/outbound-faqs-and-tips.md)
- [Call Reporting](https://docs.plumvoice.com/dev/plum-dev-guide/call-reporting.md)
- [Analytics](https://docs.plumvoice.com/dev/plum-dev-guide/analytics.md)
- [VoiceTrends](https://docs.plumvoice.com/dev/plum-dev-guide/voicetrends.md)
- [Debugging](https://docs.plumvoice.com/dev/plum-dev-guide/debugging.md)
- [Scratchpads](https://docs.plumvoice.com/dev/plum-dev-guide/scratchpads.md)
- [Saved URLs](https://docs.plumvoice.com/dev/plum-dev-guide/saved-urls.md)
- [Voice Biometrics](https://docs.plumvoice.com/dev/plum-dev-guide/voice-biometrics.md)
- [Call Routing](https://docs.plumvoice.com/dev/plum-dev-guide/call-routing.md)
- [Data Security](https://docs.plumvoice.com/dev/plum-dev-guide/data-security.md)
- ['Private' Tags](https://docs.plumvoice.com/dev/plum-dev-guide/data-security/private-tags.md)
- [Managing Secure Phone Numbers](https://docs.plumvoice.com/dev/plum-dev-guide/data-security/managing-secure-phone-numbers.md)
- [Sensitive Data Types](https://docs.plumvoice.com/dev/plum-dev-guide/data-security/sensitive-data-types.md)
- [SMS Guide](https://docs.plumvoice.com/dev/plum-dev-guide/sms-guide.md)
- [Standard Short Codes](https://docs.plumvoice.com/dev/plum-dev-guide/sms-guide/industry-standard-short-codes.md)
- [SMS Debugging/Error Logs](https://docs.plumvoice.com/dev/plum-dev-guide/sms-guide/sms-optimization-logs-and-debugging.md)
- [Additional SMS Info](https://docs.plumvoice.com/dev/plum-dev-guide/sms-guide/receiving-and-replying-to-sms-messages.md)
- [Single Sign On](https://docs.plumvoice.com/dev/plum-dev-guide/single-sign-on.md)
- [DEV Outbound APIs](https://docs.plumvoice.com/dev/plum-dev-apis/dev-outbound-apis.md)
- [Contacts CSV Formatting](https://docs.plumvoice.com/dev/plum-dev-apis/dev-outbound-apis/contacts-csv-formatting.md)
- [Outbound API Parameter Notes](https://docs.plumvoice.com/dev/plum-dev-apis/dev-outbound-apis/outbound-api-parameter-notes.md)
- [Legacy and Miscellaneous Notes](https://docs.plumvoice.com/dev/plum-dev-apis/dev-outbound-apis/legacy-and-miscellaneous-notes.md)
- [SMS API](https://docs.plumvoice.com/dev/plum-dev-apis/sms-api.md)
- [Call Logs API](https://docs.plumvoice.com/dev/plum-dev-apis/call-logs.md)
- [Call Scheduling and Pacing API](https://docs.plumvoice.com/dev/plum-dev-apis/call-scheduling-and-pacing-api.md)
- [Transcription API](https://docs.plumvoice.com/dev/plum-dev-apis/transcription-api.md)
- [Application API](https://docs.plumvoice.com/dev/plum-dev-apis/application-api.md)
- [Blocklist API](https://docs.plumvoice.com/dev/plum-dev-apis/blocklist-api.md)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on a page URL with the `ask` query parameter:
```
GET https://docs.plumvoice.com/dev/master.md?ask=<question>
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.