Network VoIP Support Engineer

VIVANT

. Answer incoming client calls related to VoIP, internet, or WiFi issues .

Posted 11/7/2026full-timeRemote • South AfricaJuniorMid-LevelWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in VoIP support, including SIP trunk configurations, PBX systems, and network troubleshooting. Proficient in managing tickets and providing clear communication to clients while maintaining service level agreements.

Highest-signal resume keywords

VoIP Support ExperienceSIP Trunk ConfigurationTCP/IP TroubleshootingPBX Systems KnowledgeTicketing System Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

SIPPBX SystemsTCP/IPDNSDHCPNetwork RoutingVoIP MetricsLatencyJitterPacket Loss

Soft Skills

Clear CommunicationProactive MindsetCustomer Rapport

Tools & Technologies

Help Desk SystemPolyGrandstreamCloud PBX Platforms

Certifications & Qualifications

CompTIA Network+CCNA

Industry Keywords

TelecomMSPVoIP Carrier Environment

Tech Stack

Tools & technologies

CloudDNSTCP/IPVoIP

About the role

Key responsibilities & impact

Answer incoming client calls related to VoIP, internet, or WiFi issues
Work tickets involving call quality, dropped calls, network drops, or routing problems
Run diagnostics including SIP traces, pings, traceroutes, MOS score review, and packet loss checks
Assist with PBX provisioning, phone registration, and softphone setup
Prioritize outages involving phones, internet, or WiFi
Document every step clearly and communicate status updates professionally
Escalate advanced issues to senior telecom engineers when appropriate
Maintain ticket SLAs with clear, fast response times
Provide first-level support for VoIP, networking, and connectivity issues
Troubleshoot SIP, call quality, latency, jitter, and registration failures
Perform basic network troubleshooting involving TCP/IP, DNS, DHCP, and routing
Troubleshoot WiFi drops, access point connectivity, and cabling-related issues
Provision phones, extensions, voicemail, call flows, and SIP trunk configurations
Manage and prioritize tickets through the help desk system
Escalate complex problems with proper documentation
Update knowledge base articles and internal processes

Requirements

What you’ll need

Not Desktop Support: If your background is primarily hardware repair or general IT helpdesk, please do not apply.
Hands-on experience with SIP trunks, PBX systems, and network routing
English fluency is required
Resumes must be in English
2+ years of VoIP or Network Support experience
Strong understanding of TCP/IP, DNS, DHCP, and NAT
Practical expertise with SIP, PBX systems, and SIP trunks
Practical expertise with routers, switches, and WiFi troubleshooting
Experience with ticketing systems and remote customer rapport
Ability to communicate technical information clearly and simply to non-technical users
Driven and proactive mindset with a passion for continuous learning and making a meaningful impact
Solid understanding of VoIP metrics such as MOS score, latency, jitter, and packet loss
CompTIA Network+, CCNA, or VoIP-related certifications are nice to have
Experience in telecom, MSP, or VoIP carrier environment is nice to have
Experience with Poly, Grandstream, or cloud PBX platforms is nice to have

Benefits

Comp & perks

Competitive base salary (based on experience)
Performance and recognition bonuses
Clear path to career advancement and leadership opportunities
Work in a fast-growing, performance-driven environment
High-impact role with real earning potential
Opportunities to grow as the company scales
Leadership opportunities for top performers