A large stumbling block tripping up smaller mobile operators as they strive to enhance and expand wireless broadband services is access to backhaul. Steven Berry, president and CEO of the Competitive Carriers Association, said the four large cable companies (Comcast, Time Warner, Bright House and Cox) are less interested in providing backhaul to smaller carriers after they sold their AWS spectrum last year to Verizon Wireless (NYSE:VZ). He's also concerned about how the shift of the public switched telephone network from TDM to IP networking will impact connectivity for smaller players. Additionally, Berry touched on the CCA's recently launched 4G LTE roaming hub, which all CCA members can join. Berry recently chatted with FierceBroadbandWireless Editor Tammy Parker about the connectivity issues faced by smaller operators in this On the Hot Seat.