Engineer VoIP

We are looking for an experiencedVoIP Engineer with 35 years of hands-on experience in implementing configuring troubleshooting and maintaining Voice over IP (VoIP) infrastructure. The candidate should have strong knowledge of SIP VoIP protocols IP networking call routing and enterprise telephony solutions.

• Configure manage and troubleshootVoIP and IP Telephony systems.
• ManageSIP trunks SIP gateways IP phones extensions and call routing.
• Troubleshoot voice-related issues including call drops one-way audio no audio call quality registration and connectivity issues.
• Monitor and maintainVoIP infrastructure voice gateways PBX and telephony platforms.
• Perform configuration and troubleshooting ofSIP RTP SDP TCP/IP UDP and DNS.
• AnalyzeSIP messages and call flows using tools such as Wireshark.
• Work with network teams to troubleshootVLAN QoS routing switching NAT and firewall issues affecting voice traffic.
• Configure and troubleshootVoIP endpoints softphones IP phones and voice gateways.
• Supportnumber provisioning dial plans hunt groups IVR call forwarding and call routing.
• Monitor voice infrastructure and proactively identify performance and availability issues.
• Coordinate with telecom/service providers forSIP trunk PRI and connectivity-related issues.
• Perform incident problem and change management as per ITIL processes.
• Maintain technical documentation network diagrams configuration details and troubleshooting procedures.
• Participate in planned maintenance upgrades migrations and implementation activities.
• Provide L2/L3 technical support for VoIP-related incidents.

• Strong hands-on experience withVoIP and IP Telephony.
• Good knowledge ofSIP RTP SDP TCP/IP UDP and DNS.
• Experience withSIP Trunking and Voice Gateways.
• Knowledge ofIP-PBX / Call Manager environments.
• Experience withCisco Voice / Cisco Unified Communications or similar enterprise VoIP platforms.
• Good understanding ofLAN/WAN VLAN Routing Switching NAT and QoS.
• Hands-on experience withWireshark or similar packet-analysis tools.
• Understanding ofvoice quality parameters latency jitter and packet loss.
• Knowledge ofSIP call flow and troubleshooting methodologies.
• Exposure tofirewalls and network security concepts related to VoIP.

• Experience withCisco CUCM CUBE Unity Connection or Webex Calling.
• Exposure toAvaya Genesys Asterisk 3CX or other IP-PBX platforms.
• Knowledge ofSBC (Session Border Controller).
• Experience withMicrosoft Teams Voice / Direct Routing.
• CCNA / CCNP Collaboration or relevant VoIP certification.
• ITIL certification or experience working in an ITIL-based environment.

Required Experience:

IC