ETSI TR 149 995-2010 数字蜂窝通信系统(第2+阶段).一般分组无线业务(GPRS).支持GPRS的改进版公共陆地移动网(PLMN)和原先的GPRS移动之间的互通(版本9.0.0).3GPP TR 49.995(版本9.0.0,第9次发布)
Digital cellular telecommunications system (Phase 2+); General Packet Radio Service (GPRS); Interworking between modified Public Land Mobile Network (PLMN) supporting GPRS and legacy GPRS mobiles V9.0.0; 3GPP TR 49.995 version 9.0.0 Release 9