跟前辈学习CSFB

stablesnow

CSFB功能参考协议清单如下：
n3GPP TS 23.401: "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access ".
n3GPP TS 23.272: "Circuit Switched (CS) fallback in Evolved Packet System (EPS)".
n3GPP TS 29.118: "Mobility Management Entity (MME) –Visitor Location Register (VLR) SGs interface specification ".

协议下载路径http://www.3gpp.org/ftp/Specs/