Base on my experience, you should integrate Live Chat in your website for better support for customers. There are a lot of inconvenience can be avoided if you use Live Chat. Let take an example of email support, customers do not have instant reply so they wont properly send email to you. Using phone call to support also have some cons. For instance, you cannot serve many customers at the same time, right? Moreover, there will be an issue if foreign customers want to contact you via phone.
Live Chat will solve many problems. You will be able to support customers right after they face an issue, and it definitely is a helpful tool for you to collect instant feedback from customers. In addition, many prospects can be served at the same time, and one of the best thing is that you can easily send helpful links to the customer through the chat interface and type complicated names into the chat box which are things phone support cannot does.
Best,
Will Smith.