“The GSMA Roamfest provides a unique platform that enables Operators to meet, discuss and reach bilateral agreements for GSM, GPRS, WLAN, SMS and MMS interworking and 3GSM roaming.”

“GSMA Hubfest - many operators today have to maintain hundreds of separate bilateral roaming agreements. Roaming Hubbing enables operators to more easily extend the reach of roaming services by establishing roaming agreements with other operators through one or more hubs.”
http://www.roamhubfest.com/
XINTEC will be attending