[Home](./index.md) > [sip.js](./sip.js.md) > [OutgoingInviteRequestDelegate](./sip.js.outgoinginviterequestdelegate.md) ## OutgoingInviteRequestDelegate interface Delegate providing custom handling of outgoing INVITE requests. Signature: ```typescript export interface OutgoingInviteRequestDelegate extends OutgoingRequestDelegate ``` ## Methods | Method | Description | | --- | --- | | [onAccept(response)](./sip.js.outgoinginviterequestdelegate.onaccept.md) | Received a 2xx positive final response to this request. | | [onProgress(response)](./sip.js.outgoinginviterequestdelegate.onprogress.md) | Received a 1xx provisional response to this request. Excluding 100 responses. |