[Home](./index.md) > [sip.js](./sip.js.md) > [Transport](./sip.js.transport.md) > [onConnect](./sip.js.transport.onconnect.md) ## Transport.onConnect property Callback on state transition to "Connected". Signature: ```typescript onConnect: (() => void) | undefined; ``` ## Remarks When the `UserAgent` is constructed, this property is set. ```txt - The `state` MUST be "Connected" when called. ```