[Home](./index.md) > [sip.js](./sip.js.md) > [AckableIncomingResponseWithSession](./sip.js.ackableincomingresponsewithsession.md) ## AckableIncomingResponseWithSession interface Incoming INVITE response received when request is accepted. Signature: ```typescript export interface AckableIncomingResponseWithSession extends IncomingResponse ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [session](./sip.js.ackableincomingresponsewithsession.session.md) | Session | Session associated with outgoing request acceptance. | ## Methods | Method | Description | | --- | --- | | [ack(options)](./sip.js.ackableincomingresponsewithsession.ack.md) | Send an ACK to acknowledge this response. |