Ensure the telemarketing firm you choose, has the necessary experience. Verify success with similar projects. Hiring a telemarketing call center that has experience in your industry, makes a big difference in campaign productivity, training cost and agent learning curves.
Ensure the telemarketing company you hire, has the proper equipment, personnel, and expertise, to successfully manage, your companys telemarketing campaign.
re-enter information again.

A major function of call center services is to accept calls to answer customers' questions about your business's products or services. Call centers can often provide information or technical support, as well as take orders and process payments over the phone. Many will also dispatch calls to you in the event a customer needs to speak directly with someone inside the company. All of these services fall under the "inbound services" umbrella.
Some call centers also offer so-called outbound services, which include lead generation, such as cold calling and survey-data compilation. These services can also include follow-ups with previous customers to ensure their satisfaction or to further encourage a successful conversion. Traditionally, call centers were viewed as a necessary expense to preserve existing relationships, but when you consider these additional functions, call centers can actually broaden your customer base, forge new relationships and bring in more money.
Not every business needs both inbound and outbound services, so it's important to consider your business's needs. Once you know exactly what you need, be sure to ask each call center service which inbound and outbound services it offers..

Another important question to ask is how often agents at the call center are available. Good services have 24/7/365 availability for your customers. Some call center services even offer disaster recovery services, meaning they can take over completely if your own phone lines go down due to an emergency. Selecting a service that is always available and very reliable should be a major focus for your business.

You'll want to monitor the call center service's performance to be sure it's operating as expected. After all, the call center will be dealing directly with your customers, meaning it could have a great influence on how they perceive your business. Reporting offers you a window into the day-to-day operations of the call center service you've hired.
But not all reporting is created equal. Some companies only offer basic summaries of how many calls they made or received in a given time period, while others provide access to real-time data analytics and even record the audio of calls for review when something goes wrong. Before you sign up with a call center service, it's important to know how transparent and forthcoming it will be and what you can expect from the company's self-reporting.