Specifies the surrogate Register State of the peer. The options are:
Active – Registration completes successfully.
Deleting – A de-registration was sent out and is awaiting final response from Registrar.
Inactive– Surrogate registration or re-registration has failed.
Initiating – A registration was sent out and is awaiting response from Registrar. Same state is also seen when refresh register is sent out or when register is challenged with 401/407 response and awaiting response from Registrar.
(No entries) – The surrogate registration flag is disabled or when de-registration has completed successfully.