We were recently approached by a Bristol IT company to replace their ageing Avaya system. The proposed solution was an Elastix 2.3 solution running on Vmware 5.1, with their ISDN30e line connected via a Digium G100 gateway.
A key requirement was the ability to recharge usage to tenants in the building and replace an aging and expensive Oak call logger, This was simple with the Elastix solution as this option is included free of charge in the system and just required the uploading of a rates table.
The customer decided on Yealink T28 handsets for the office, utilising the BLF to have visibility of who is engaged on calls.