[Home](./index.md) > [sip.js](./sip.js.md) > [SessionInviteOptions](./sip.js.sessioninviteoptions.md) ## SessionInviteOptions interface Options for [Session.invite()](./sip.js.session.invite.md). Signature: ```typescript export interface SessionInviteOptions ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [requestDelegate](./sip.js.sessioninviteoptions.requestdelegate.md) | OutgoingRequestDelegate | See core API. | | [requestOptions](./sip.js.sessioninviteoptions.requestoptions.md) | RequestOptions | See core API. | | [sessionDescriptionHandlerModifiers](./sip.js.sessioninviteoptions.sessiondescriptionhandlermodifiers.md) | Array<SessionDescriptionHandlerModifier> | | | [sessionDescriptionHandlerOptions](./sip.js.sessioninviteoptions.sessiondescriptionhandleroptions.md) | SessionDescriptionHandlerOptions | | | [withoutSdp](./sip.js.sessioninviteoptions.withoutsdp.md) | boolean | If true, send INVITE without SDP. Default is false. |