[Home](./index.md) > [sip.js](./sip.js.md) > [UserAgentCoreConfiguration](./sip.js.useragentcoreconfiguration.md) > [transportAccessor](./sip.js.useragentcoreconfiguration.transportaccessor.md) ## UserAgentCoreConfiguration.transportAccessor() method DEPRECATED: This is a hack to get around `Transport` requiring the `UA` to start for construction. Signature: ```typescript transportAccessor(): Transport | undefined; ``` Returns: `Transport | undefined`