Some places get "rated" by the length of the calls, not number of happy customers, or resolution to call ratio... just length of calls. Keeping it short, even if it pisses off the customer is better for keeping their job.
So obviously you can save money by shortening call durations. This has a nice side effect of reducing the number of customers (over time), which also helps reduce support costs.
#metricsDrivenManagement
Or it could be simply a place that doesn't use the call length metric, I imagine every call center has its own set of rules. I can only speak for the ones that my friends work[ed] for. Overseas call centers may have less focus on call length since the cost of the call to the company is less.