Call Center KPI Formulas: AHT, FCR, Abandonment Rate and Shrinkage
The formulas for AHT, first call resolution, abandonment rate (raw and adjusted) and shrinkage, each with a worked example and a free calculator.
7 min read-Oct 17, 2026
Call Center
4 articles about call center. Discover expert insights, tutorials, and guides.
Erlang B vs Erlang C: How Many Lines vs How Many Agents
Erlang B tells you how many phone lines or SIP channels you need; Erlang C tells you how many agents. A worked example from 200 busy-hour calls to lines and agents.
6 min read-Oct 17, 2026
Best AI Call Center Software 2026: Complete Reviews & Comparison
Compare the top AI call center solutions for 2026. In-depth reviews of Amazon Connect, Google CCAI, Five9, Genesys, and alternatives with pricing and feature comparison.
11 min read-Jan 1, 2026
Best AI Call Center Software 2025: Complete Reviews & Comparison
Compare the top AI call center solutions for 2025. In-depth reviews of Amazon Connect, Google CCAI, Five9, Genesys, and alternatives with pricing and feature comparison.
11 min read-Dec 15, 2024