Though Remote PHY is a more mature technology, Remote MAC-PHY is more ambitious and might be preferable in the long term. MAC-PHY is currently available from several vendors, but the lack of a full spec makes interoperability an issue.
Customers are demanding higher data rates. Remote PHY allows telecom companies to achieve the higher data rates that customers are demanding. Being aware of the Remote PHY deployment challenges in advance is important to deal with maintenance issues and keep an outstanding customer service.