Data center centroid metric calculations for pstn services

A communication system, comprising:

• an initial data center of a plurality of data centers to initially host a conference call having participants on the conference call that include a first plurality of participants each associated with one of a first plurality of participant locations, a selection of the initial data center being based at least in part on the first plurality of participant locations;
• and,
• a handoff system to select an identified data center from the plurality of data centers based on effective distances between each of the first plurality of participants and the identified data center, the identified data center to host the conference call.

A non-transitory computer readable medium having instructions stored thereon for selecting a data center to host a conference call that, when executed by a computer, at least instruct the computer to:

• receive effective distance information about each of a plurality of participants that are on the conference call, the effective distance information associating each combination of each of the plurality of participants and a plurality of data centers to a respective effective distance indicator;
• and,
• based on the effective distance indicators for a data center of the plurality of the data centers, select the data center to host the conference call.