[Home](./index.md) > [sip.js](./sip.js.md) > [IncomingMessage](./sip.js.incomingmessage.md) > [setHeader](./sip.js.incomingmessage.setheader.md) ## IncomingMessage.setHeader() method Replace the value of the given header by the value. Signature: ```typescript setHeader(name: string, value: string): void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | name | string | header name | | value | string | header value | Returns: `void`