[Home](./index.md) > [sip.js](./sip.js.md) > [SubscribeUserAgentClient](./sip.js.subscribeuseragentclient.md) > [waitNotifyStart](./sip.js.subscribeuseragentclient.waitnotifystart.md) ## SubscribeUserAgentClient.waitNotifyStart() method Signature: ```typescript waitNotifyStart(): void; ``` Returns: `void`