[Home](./index.md) > [sip.js](./sip.js.md) > [SessionDelegate](./sip.js.sessiondelegate.md) ## SessionDelegate interface Delegate for [Session](./sip.js.session.md). Signature: ```typescript export interface SessionDelegate ``` ## Methods | Method | Description | | --- | --- | | [onInfo(info)](./sip.js.sessiondelegate.oninfo.md) | Called upon receiving an incoming in dialog INFO request. | | [onInvite(request, response, statusCode)](./sip.js.sessiondelegate.oninvite.md) | Called upon receiving an incoming in dialog INVITE request. | | [onNotify(notification)](./sip.js.sessiondelegate.onnotify.md) | Called upon receiving an incoming in dialog NOTIFY request. | | [onRefer(referral)](./sip.js.sessiondelegate.onrefer.md) | Called upon receiving an incoming in dialog REFER request. |