When you are experiencing a high volume of calls, start off by determining the cause. Once you have pinpointed the specific reason, you can figure out how to address the influx. Make sure you have a Frequently Asked Questions or FAQ page on your website. This is particularly helpful when you have numerous calls asking the same questions and can save you some serious time. I might be stating the obvious here but make sure you are well staffed during peak times. Last but not least, make sure that you deliver quality customer service. The more efficient and well trained the team, the quicker the issue will be resolved.