Senior VOIP Developer

Designation:

Senior VOIP Developer

Experience:

4+ Years

Job Description Desired Skills Good understanding of TCP/IP protocol stack and practical knowledge of VLAN / L3 VPNs Very good knowledge on SIP / SDP protocol / RTP / SRTP / TLS protocols Must have knowledge in OpenSIPS or Kamailio Good experience in Freeswitch, Asterisk Must have experience with C / C++ programming language Must have knowledge in diameter Experience in MySQL, MongoDB Sound knowledge of IMS call flow Standard features of Enterprise Communication Servers (PBXs) Problem Troubleshooting and debugging techniques Review work of resources Good in Written and verbal communication

Nice to Have Inter-process communication, API design, message queues Experience in Freeswitch, Asterisk Experience in building any of softPBX, Voicemail, ACD, IVRS these applications Experience in any of the programming languages like Python, PHP, Javascript, Java Knowledge of Linux / server administration Experience in Linux and Linux commands line tools Knowledge of WebRTC Firewall, Security Tools cmake, git