[Home](./index.md) > [sip.js](./sip.js.md) > [SignalingState](./sip.js.signalingstate.md) ## SignalingState enum Offer/Answer state. Signature: ```typescript export declare enum SignalingState ``` ## Enumeration Members | Member | Value | Description | | --- | --- | --- | | Closed | "Closed" | | | HaveLocalOffer | "HaveLocalOffer" | | | HaveRemoteOffer | "HaveRemoteOffer" | | | Initial | "Initial" | | | Stable | "Stable" | | ## Remarks ```txt Offer Answer RFC Ini Est Early ------------------------------------------------------------------- 1. INVITE Req. 2xx INVITE Resp. RFC 3261 Y Y N 2. 2xx INVITE Resp. ACK Req. RFC 3261 Y Y N 3. INVITE Req. 1xx-rel INVITE Resp. RFC 3262 Y Y N 4. 1xx-rel INVITE Resp. PRACK Req. RFC 3262 Y Y N 5. PRACK Req. 200 PRACK Resp. RFC 3262 N Y Y 6. UPDATE Req. 2xx UPDATE Resp. RFC 3311 N Y Y Table 1: Summary of SIP Usage of the Offer/Answer Model ``` https://tools.ietf.org/html/rfc6337\#section-2.2