Skills:
IP Multimedia Subsystem (IMS - CSCF, TAS, HSS, PCRF, MRF, MGC, MGW, EMS), Voice & Video over LTE (VoLTE IR.92 & IR.94), Rich Communications Suite (RCS GSMA - PS, XDMS, MMIM), SRVCC, DRA, Charging (Online & Offline), Session Border Controllers (SBC), WebRTC, SIP, DIAMETER, Network Function Virtualization (NFV), Wi-Fi, EPC, QoS, VoIP, Unified Communications, SIP trunking, IP Routing & Switching, Sigtran, Packet Cable NCS, H.248, H.323, ISDN, SS7, E911, Calea, IPv6, DNS, ENUM, Unix, Linux, T1, ISDN, ATM, Frame Relay and Wireshark. Alcatel-Lucent IMS/VoLTE/RCS solution, IP routers, and Enterprise UC IP PBX portfolio. Cisco Voice & UC Call Manager, IP routing & switching and Cable portfolio. Acme Packet session border controller (SBC), Broadsoft Softswitch, Sonus Softswitch and Media gateway, NSN Softswitch and Media gateway, Aastra and Polycom SIP phones, OpenWave Voicemail system, Cedar Point Softswitch, Arris and Motorola Packet Cable solutions, SS8 Calea Solution.