Production Telephony Patterns
Build production-grade phone systems
Master production telephony patterns including warm and cold transfers, call recording, queue management, and outbound calling systems. Learn to build reliable, scalable phone systems with proper error handling and monitoring.
What You Build
Outbound survey calling system with warm transfers, call recording, and queue management.
Prerequisites
- →Course 1.3
Production telephony patterns overview
15mSurvey production telephony patterns and understand the requirements for building reliable phone systems.
Warm transfers
25mImplement warm transfers where the caller is introduced to the transfer target before handoff.
Cold transfers
20mImplement cold transfers using SIP REFER and configure transfer targets for direct handoff.
Call recording & compliance
25mSet up call recording with compliance controls, egress to S3, and proper consent handling.
Building the outbound system
30mBuild an outbound calling system with trunk configuration, campaign management, and rate limiting.
Queue management
25mImplement call queue management with priority handling, wait time estimation, and callback scheduling.
Error handling & retries
20mHandle SIP errors gracefully with retry logic and fallback routing strategies.
Monitoring & analytics
20mSet up monitoring with call metrics, call detail records, and real-time dashboards.
Load testing
15mLoad test your telephony system and plan capacity for production scale.
What You Walk Away With
Production telephony patterns including warm/cold transfers, call recording, queue management, and monitoring.