[Home](./index.md) > [sip.js](./sip.js.md) > [SessionDescriptionHandler](./sip.js.sessiondescriptionhandler.md) > [setDescription](./sip.js.sessiondescriptionhandler.setdescription.md) ## SessionDescriptionHandler.setDescription() method Sets the remote description to the underlying media implementation. Signature: ```typescript setDescription(sdp: string, options?: SessionDescriptionHandlerOptions, modifiers?: Array): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | sdp | string | | | options | SessionDescriptionHandlerOptions | Options object to be used by setDescription. | | modifiers | Array<SessionDescriptionHandlerModifier> | Array with one time use description modifiers. | Returns: `Promise` Promise that resolves once the description is set. Rejects with `ClosedSessionDescriptionHandlerError` when this method is called after close or when close occurs before complete.