COLT rides Infinera; Core4 targets cool data centers

> COLT Telecom Group chooses Infinera for optical network deployments, which may spell more bad news for Nortel Networks.

> Savvis offers managed telepresence with help from Cisco Systems.

> Core4 Systems launches with the business aim of provide more efficient cooling for increasingly busy data centers.

> Polycom announced an entry-level telepresence system.