A configuration resource automatically synchronizes configuration settings associated with one or more communication resources disposed in a respective subscriber domain. For example, a communication resource such as communication device operated by the subscriber initiates a change to configuration settings associated with a first communication resource disposed in a subscriber domain. The first communication resource notifies the auto-configuration resource of the new configuration settings applied to the first communication resource. The auto-configuration resource identifies one or more other communication resources disposed in the subscriber domain. To ensure synchronization of the communication resources in the subscriber domain, in response to receiving notification of the new configuration settings applied to at least one communication resource and the subscriber domain, the auto-configuration resource initiates modification of configuration settings associated with the one or more other communication resources in the subscriber domain.