Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer You can enable Vocabulary Specialization when creating or updating a Voice Agent using the

vocab_specialization

parameter. [(1) ]() [(2) ]() Available options: -

general

(default) -

medical

Important: This setting only applies to English agents. For non-English agents, this setting is a no-op. Via API (JavaScript example) :

javascript
import Retell from 'retell-sdk';
const client = new Retell({
  apiKey: 'YOUR_RETELL_API_KEY',
}) ;
const agentResponse = await client.agent.update('16b980523634a6dc504898cda492e939', { vocab_specialization: 'medical' }) ;

[(1) ]() Via Dashboard: Navigate to Transcription Settings → Vocabulary Specialization and select

Medical

. [(3) ]() Note: There's a known UI behavior where after publishing, the new draft may appear to revert to

general

, but the published version retains the

medical

setting. You can verify this via the [Get Agent Versions API]() .

​ To learn more, see the sources I considered: [[1] Update Voice Agent](https://docs.retellai.com/api-references/update-agent) [[2] Create Voice Agent](https://docs.retellai.com/api-references/create-agent) [[3] [Bug] Medical Transcription selection gets reset back to General on Publish](https://discord.com/channels/1186424376300679209/1396272031582130196) ​

@AI Evy which file Retell Ai supports to import

### Answer For the Knowledge Base feature, Retell AI supports importing data through these methods: [(1) ]() - Scrape from Webpages: Upload your website's sitemap, and the system will extract relevant content automatically. - Upload Files: Import data seamlessly with support for all common document formats, such as PDFs, Word documents, and spreadsheets. - Manual Input: Copy and paste text for custom entries, ideal for dynamic or evolving information. The documentation specifically mentions support for PDFs, Word documents, and spreadsheets as examples of common formats.

​ To learn more, see the sources I considered: [[1] Simplify Support with Retell AI’s Knowledge Base | Retell AI](https://www.retellai.com/blog/knowledge-base-feature) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer ### Answer For Agent Import, Retell AI supports importing agents via JSON files. [(1) ]() [(2) ]() Based on community discussions, when importing an agent: - The file format must be JSON [(1) ]() - The JSON structure must be valid—common issues include using empty arrays

[]

instead of empty objects

{}

for certain fields like

headers

,

query_params

, and

response

variables in functions - For tools like "Wait", parameters must be formatted as an object [(2) ]() If you encounter errors during import (such as "Parameters must be object") , review your JSON file to ensure all tool configurations use the correct format.

​ To learn more, see the sources I considered: [[1] Import Agent](https://discord.com/channels/1186424376300679209/1396620050303156224) [[2] Import Option does not work for outbound agents](https://discord.com/channels/1186424376300679209/1385302044956426451) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.