Protingent
–
Bailey's Crossroads, VA, 22041
... Radio resource management GSM SS7, SIGTRAN, GSM, VLR, HLR, MSC, SMSC, Billing, CAMEL, GPRS 4G/LTE UMTS, RNC, Node-B LTE Uu interface, eNodeB, MME, HSS, Diameter, PDN-GW SIP 5G VoLTE, Beamforming, SMS over IMS, MIMO Network Security Network planning. ... - Apr 18