V6.0 build 418 was released on 8/Dec/2008, and contains:
T-Convert for converting data into PhoneCalc and T-Plan files.
Miscellaneous minor fixes.

V5.9 build 399 was released on 13/Sep/2008, and contains:
fixes recommended for all users
PhoneCalc new features
     hierarchical scenarios
     shift planner
T-Plan improvements
     TOD factors for short history
provision for quiet-mode installation.

Description   Download

Erlang Information

Erlang calculations, introduction, spreadsheets without add-ins; mathematical details.

Library

Papers on call-centre planning, statistics, and probability.