Profile
About Vishnu
Vishnu specializes in Asterisk PBX, dialplan engineering, and legacy telephony integrations for CloudUCaaS clients running hybrid or migration-path deployments alongside FreeSWITCH and SIP trunking infrastructure.
CloudUCaaS Focus
Hands-on Asterisk and PBX engineering for hybrid telephony and migration projects within CloudUCaaS service portfolio.
Professional Experience
- ✓Engineered Asterisk dialplans, queues, and IVR flows for US inbound and outbound operations
- ✓Integrated Asterisk with SIP trunks, CRM click-to-dial, and REST-based provisioning APIs
- ✓Troubleshot SIP registration, NAT, and codec issues in production PBX environments
- ✓Assisted hybrid deployments where Asterisk coexists with FreeSWITCH media and OpenSIPS routing
- ✓Documented cutover runbooks for clients migrating from on-premise PBX to cloud UCaaS
Key Skills
Asterisk PBX & DialplanIVR & Call Queue DesignSIP Trunk IntegrationAGI & AMI DevelopmentLinux Telephony ServersCRM Click-to-DialVoIP TroubleshootingPBX Migration Planning
Achievements
- ★Delivered stable Asterisk PBX deployments for multi-extension US business clients
- ★Reduced call routing failures through failover dialplan and trunk redundancy patterns
- ★Supported successful migrations from legacy PBX to CloudUCaaS cloud platforms
- ★Resolved complex SIP interoperability issues with US carrier endpoints
