[Home](./index.md) > [sip.js](./sip.js.md) > [Transport](./sip.js.transport.md) > [isConnected](./sip.js.transport.isconnected.md) ## Transport.isConnected() method Returns true if the `state` equals "Connected". Signature: ```typescript isConnected(): boolean; ``` Returns: `boolean` ## Remarks This is equivalent to `state === TransportState.Connected`. It is convenient. A common paradigm is, for example... ## Example ```ts // Monitor transport connectivity userAgent.transport.stateChange.addListener(() => { if (userAgent.transport.isConnected()) { // handle transport connect } else { // handle transport disconnect } }); ```