[Home](./index.md) > [sip.js](./sip.js.md) > [PrackUserAgentClient](./sip.js.prackuseragentclient.md) ## PrackUserAgentClient class PRACK UAC. Signature: ```typescript export declare class PrackUserAgentClient extends UserAgentClient implements OutgoingPrackRequest ``` ## Constructors | Constructor | Modifiers | Description | | --- | --- | --- | | [(constructor)(dialog, delegate, options)](./sip.js.prackuseragentclient._constructor_.md) | | Constructs a new instance of the PrackUserAgentClient class |