> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes. # hangup > Add a hangup verb to end the current call. Add a `hangup` verb to the main section. Ends the current call. ## **Parameters** **`config`** `Record | undefined` Optional configuration object for the hangup verb. Supported keys: * `reason` (`'hangup' | 'busy' | 'decline'`) -- The reason for hanging up the call. --- ## **Returns** `this` -- The builder instance for method chaining. ## **Example** ```typescript {5} import { SwmlBuilder } from '@signalwire/sdk'; const builder = new SwmlBuilder(); builder.answer(); builder.hangup({ reason: 'hangup' }); ``` > Add a hangup verb to end the current call.