[Home](./index.md) > [sip.js](./sip.js.md) > [DialogState](./sip.js.dialogstate.md) ## DialogState interface Dialog state. Signature: ```typescript export interface DialogState ``` ## Remarks A dialog contains certain pieces of state needed for further message transmissions within the dialog. This state consists of the dialog ID, a local sequence number (used to order requests from the UA to its peer), a remote sequence number (used to order requests from its peer to the UA), a local URI, a remote URI, remote target, a boolean flag called "secure", and a route set, which is an ordered list of URIs. The route set is the list of servers that need to be traversed to send a request to the peer. A dialog can also be in the "early" state, which occurs when it is created with a provisional response, and then transition to the "confirmed" state when a 2xx final response arrives. For other responses, or if no response arrives at all on that dialog, the early dialog terminates. https://tools.ietf.org/html/rfc3261\#section-12 ## Properties | Property | Type | Description | | --- | --- | --- | | [callId](./sip.js.dialogstate.callid.md) | string | | | [early](./sip.js.dialogstate.early.md) | boolean | | | [id](./sip.js.dialogstate.id.md) | string | | | [localSequenceNumber](./sip.js.dialogstate.localsequencenumber.md) | number | undefined | | | [localTag](./sip.js.dialogstate.localtag.md) | string | | | [localURI](./sip.js.dialogstate.localuri.md) | URI | | | [remoteSequenceNumber](./sip.js.dialogstate.remotesequencenumber.md) | number | undefined | | | [remoteTag](./sip.js.dialogstate.remotetag.md) | string | | | [remoteTarget](./sip.js.dialogstate.remotetarget.md) | URI | | | [remoteURI](./sip.js.dialogstate.remoteuri.md) | URI | | | [routeSet](./sip.js.dialogstate.routeset.md) | Array<string> | | | [secure](./sip.js.dialogstate.secure.md) | boolean | |