Momen A.

Do you have an Asterisk PBX job and are looking for a talented and experienced Asterisk PBX? I believe that my experience and skill in this background will prove to be of great help to you. I have worked as an Asterisk PBX technical support for 9+ years and my skills and experience will prove useful to your work. I am ready to start working on your job today. - Experience brief: 10+ years of strong professional with Information Technology focused on Unified Communications - Cloud/On-Premise Open-Source VOIP Systems (Voice over IP) Experienced Specialist with a demonstrated history of working in the telecommunications industry, Skilled with the below and their Managements: - Asterisk. - FreeSwitch. - FreePBX. - VitalPBX. - JeraSoft Billing System. - MagnusBilling System. - Issabel. - Bicom PBXware [Multi/Single Tenant]. - Elastix. - Custom development SBC based on OpenSIPS. - Grandstream IP-PBX, FXO/FXS Gateways, and IP-Phones. - Yeastar IP-PBX, FXO/FXS/GSM Gateways, and Yealink IP-Phones. - XonTel IP-PBX, and IP-Phones. - SynWay IP-PBX, FXO/FXS Gateways, and FXO/FXS Cards. - Sangoma/Digium FXO/FXS Cards. - SIP Trunking. - Call Center Auto dialing. - Multi IVR. - GSM Gateways (GoIP) / USB Chan_Dongle. - Linux VPN Servers (SSTP, WireGuard, TailScale, and ZeroTier). - VOIP Protocols: SIP, TCP, UDP, TLS, RTP, and SRTP. - Knowledge of Toll-Free Numbers, Inbound (DIDs), and Outbound (CIDs). - Strong knowledge of Linux/UNIX. - VOIP Troubleshooting: - Hands-on debugging experience of SIP, and SIP Call Traffic Packet Analysis through SNGREP, TCPDump, and Wireshark, with SIP Error Cause Codes understanding - Develop, maintain, and document the installation and configuration procedures.