VOIP Engineer/Telephony Network Engineer
Experience : 2 to 5 Years
Location : Hyderabad
Telephony Skill Set :
- SExpertise in FreeSWITCH - modules, profiles, and dial plan
- Knowledge of VoIP, SIP, RTP, SDP, and PRI
- Hands-on experience in configuring any 3 widely used IP phone models (ex: Grand stream, Yealink, Cisco, etc.,)
- Networking Skill Set
- Understanding of network architecture at different locations
- Understanding of OS level firewall (IP-tables)
- In-depth understanding of LAN, WAN, NAT, DHCP, Routing, Firewall and ICMP, TCP, UDP, RTP, SIP protocols
- Working knowledge of network packet capturing tools like Wireshark (Windows),Tcpdump (Linux)
Your job responsibilities :
- Real-time call monitoring and troubleshooting
- Real-time network performance troubleshooting
- Simulating SIP traffic by using SIPp tool
- Troubleshooting SIP messages within the same network and behind the NAT
- Maximizing network performance by troubleshooting network problems, and outages
- Providing remote support to on-site engineers, end users or customers during network related problems
- Dealing with network interface settings in both Windows and Linux environments
You should also :
- Have a basic understanding of codecs and webRTC
- Be able to quickly self-learn new or unfamiliar technology/products
- Be familiar with SIP clients like Zoiper, X-Lite, etc
- Be dependable and flexible, especially during outages and emergencies