Job Purpose
We are seeking a skilled VoIP Engineer with hands-on experience in Asterisk, FusionPBX, FreeSwitch, ViCIdial, SBC configuration, and hosted contact centre environments. The ideal candidate will be responsible for configuring, delivering, and maintaining SIP trunking, contact centre, and PBX/telephony systems from both application and backend perspective.
Key Responsibilities

Contact Centre & PBX Administration
Configure and manage users, campaigns, and leads in a hosted contact centre platform.
Create and deploy IVR menus and call flow configurations, including audio prompts and routing logic.
Customize and manage disposition codes, call outcomes, and agent workflows.
Monitor and maintain contact centre platform performance and availability.
SIP Trunking & SBC Configuration
Configure and maintain SIP trunks between Asterisk, SBCs, and third-party PBXs.
Perform integration of SBCs with other VoIP systems (e.g., EPBX, CUCM, or hosted PBX platforms/dialler).
Troubleshoot and debug call flow, SIP signalling, and VoIP-related customer issues.




Monitor and ensure call quality using knowledge of VoIP protocols and network fundamentals.
Troubleshooting & Incident Resolution
Diagnose and resolve VoIP call quality issues including jitter, latency, packet loss, and codec mismatches.
Troubleshoot SIP signalling, RTP media path, and authentication failures.
Perform root cause analysis (RCA) on recurring VoIP incidents and implement preventive measures.
Coordinate with carriers and third-party vendors for SIP trunk and interconnect issue resolution.

Qualification & Experience
Education: Bachelor's degree in computer science, Electronics, Telecommunications, or equivalent field.
Experience:2+ years of practical experience with Asterisk / FusionPBX / FreeSwitch / VICIdial or other telephony platforms.
Certifications (if any):CCNA-Voice or CCNP-Collaboration preferred; Relevant certifications in VoIP, Asterisk, or networking are a plus.
Required Skills & Competencies
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📌 Manager - Voice Application Delivery (Ahmedabad)
🏢 Ishan Technologies
📍 Ahmedabad