Telecom Support Engineer (VoIP / Asterisk)
PROPERTY BUY-RENT (SMC -Private) Limited
Lahore , Pakistan
Posted 6 days ago 41 views
We are looking for a skilled VoIP Engineer to provide advanced technical support, troubleshooting, and maintenance for VoIP, telephony, and unified communications platforms. The successful candidate will manage complex technical issues escalated from first and second-line support, handle customer incidents, implement system changes, and contribute to the design, deployment, and optimization of VoIP solutions. This role demands strong problem-solving abilities and the capacity to work independently in a fast-paced, dynamic environment.
Key Responsibilities
Provide expert technical support for VoIP and unified communications systems. Diagnose and resolve complex issues involving SIP, VoIP, RTP, codecs, DTMF, call routing, and number provisioning. Troubleshoot problems related to SIP registration, authentication, call quality, one-way audio, dropped calls, and connectivity. Analyze SIP traces, packet captures, and network traffic using tools such as Wireshark. Configure and troubleshoot SIP trunks, IP phones, Session Border Controllers (SBCs), gateways, and VoIP platforms. Investigate network-related issues including DNS, DHCP, VLANs, QoS, NAT, firewalls, and routing. Manage escalated incidents by providing clear technical updates until resolution. Collaborate with carriers, ISPs, vendors, and third-party providers to resolve complex faults. Perform system changes, upgrades, migrations, and platform deployments. Monitor VoIP infrastructure proactively to identify and mitigate potential service-impacting issues. Maintain accurate technical documentation, network diagrams, and support procedures. Assist with the implementation and configuration of new customers and telephony services. Support disaster recovery, resilience, and business continuity arrangements. Participate in an on-call or out-of-hours support rota as required.
Required Qualifications
Proven experience in a second or third-line VoIP or Unified Communications engineering role. Strong knowledge of SIP, VoIP, RTP, SIP trunking, call routing, IP telephony, and PBX systems. Experience with SBCs, VoIP gateways, SIP registration and authentication, and codecs such as G.711, G.729, and Opus. Proficiency in TCP/IP networking, DNS, DHCP, VLANs, NAT, firewalls, port forwarding, and QoS for VoIP optimization. Skilled in using Wireshark and other packet analysis tools. Familiarity with Linux and/or Windows server environments. Experience with cloud and hosted telephony platforms, including Microsoft Teams, Teams Phone, and other unified communications technologies. Ability to work within ITIL or service-desk frameworks. Strong analytical, problem-solving, and communication skills. Bachelor’s degree is required. Minimum of two years’ experience working with Asterisk, PBX systems, or VoIP technologies. This position is based in Lahore and requires in-person attendance. Excellent English communication skills are essential.
Preferred Qualifications and Benefits
Experience supporting enterprise or hosted VoIP environments. Familiarity with platforms such as 3CX, Asterisk, FreePBX, BroadWorks, Teams Phone, Mitel, Cisco, Avaya, or similar systems. Experience configuring SBCs like AudioCodes, Ribbon, or equivalents. Knowledge of SIP providers, carrier networks, and telephone number porting processes. Experience with API integrations and telecom provisioning systems. Relevant networking or VoIP certifications are advantageous. Willingness to mentor junior engineers and share technical knowledge. Ability to prioritize incidents effectively in a high-pressure environment. The salary range for this role is Rs 90,000 to Rs 150,000 per month.
This position offers an excellent opportunity to work with cutting-edge VoIP technologies and contribute to a dynamic telecommunications environment. Candidates who meet the qualifications and are ready to take on challenging technical responsibilities are encouraged to apply.
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PROPERTY BUY-RENT (SMC -Private) Limited
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