Asterisk VoIP Developer

1 day ago

Kolkata, West Bengal, India Northern It Services Full time ₹ 4,50,000 - ₹ 9,00,000 per year

1. System Development & Configuration

  • Design, develop, and deploy solutions using Asterisk, FreePBX, Vicidial, GoAutoDial, or similar platforms.
  • Create and maintain dial plan logic, IVR menus, and call routing scripts.
  • Implement and configure SIP trunks, PRI lines, gateways, and SBCs.
  • Develop custom Asterisk AGI/ARI scripts using Python, PHP, or
  • Integrate Asterisk with CRM systems, APIs, or databases (MySQL, PostgreSQL).

2. Dialer Management

  • Configure and optimize predictive, progressive, and manual dialers for maximum efficiency.
  • Manage campaign setup, call pacing, and list management for outbound processes.
  • Monitor call success rates, agent utilization, and drop ratios, and tune dialer performance.
  • Develop custom reports and dashboards for operations and management teams.

3. Maintenance & Troubleshooting

  • Monitor real-time call flow, logs, and server performance.
  • Troubleshoot SIP registration, codec, and NAT issues.
  • Maintain system uptime and ensure redundancy, failover, and data backups.
  • Manage call recordings, storage optimization, and log retention.

4. Security & Compliance

  • Implement security measures such as firewall rules, IP whitelisting, and TLS/SRTP encryption.
  • Prevent toll fraud and unauthorized access.
  • Ensure compliance with TRAI/DND regulations and data privacy policies.

5. Collaboration & Support

  • Work closely with network, CRM, and database teams to ensure smooth integration.
  • Support operations and QA teams in diagnosing call-related issues.
  • Train and guide support staff for basic troubleshooting.

6. Innovation & Optimization

  • Research and implement new VoIP tools, dialer algorithms, and open-source solutions.
  • Improve system scalability and performance to support large-scale campaigns.
  • Automate repetitive tasks using scripts or APIs.

Technical Skills Required:

  • Strong knowledge of Asterisk, Vicidial, FreePBX, and SIP protocols.
  • Experience with Linux administration (CentOS/Ubuntu).
  • Scripting: Bash, Python, PHP, or
  • Knowledge of MySQL/PostgreSQL databases.
  • Familiarity with networking concepts (VoIP codecs, RTP, NAT, QoS).
  • Experience with API integration and webhooks.

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