[Home](./index.md) > [sip.js](./sip.js.md) > [TransportState](./sip.js.transportstate.md) ## TransportState enum [Transport](./sip.js.transport.md) state. Signature: ```typescript export declare enum TransportState ``` ## Enumeration Members | Member | Value | Description | | --- | --- | --- | | Connected | "Connected" | The connect() method resolved. | | Connecting | "Connecting" | The connect() method was called. | | Disconnected | "Disconnected" | The connect() method was rejected, or the disconnect() method completed, or network connectivity was lost. | | Disconnecting | "Disconnecting" | The disconnect() method was called. | ## Remarks The [Transport](./sip.js.transport.md) behaves in a deterministic manner according to the following Finite State Machine (FSM). ```txt ______________________________ | ____________ | Transport v v | | Constructed -> Disconnected -> Connecting -> Connected -> Disconnecting ^ ^ |_____________________^ | | | |_____________________________| | |_____________________________________________| ```