How Can You Measure The Success Of Telemarketing Campaigns?

In the world of B2B marketing and sales, phoning people can cut through the noise of the digital environment and get your product or service in front of the right potential customers more quickly and efficiently. 

But how can you tell whether a telemarketing campaign is effective? And what metrics should you be looking at to indicate whether what you’re doing is really moving the needle? 

We’re going to dive into some of the most common metrics used to measure the success of telemarketing campaigns and explain why each is important. 

However, while individual metrics can help you understand how specific elements of your telemarketing campaign are working, you need to keep one eye on the bigger picture. Specifically, are your sales team speaking to more qualified leads? 

And are those people going on to make a purchase or become your clients? If the answer to those two questions is, “Yes” that’s a solid indication that your telemarketing is working as it should. 

A note about telemarketing metrics

Before we dive into the specific metrics to look at, it’s important to point out that these should be used as data points to shape a campaign. They are not definitive indications that the whole process of telemarketing is or isn’t working. 

Instead, they can be used to help your life sciences telemarketing team adapt and adjust their activities as required.  

We provide all of our clients with comprehensive weekly reports that show you not only what activity has been carried out, but also how the campaign is performing against key metrics. This ensures you stay informed without having to actively monitor the metrics yourself. 

It’s important to track and analyse the data generated by marketing and sales activities to optimise performance. In fact, a Mckinsey & Company study revealed that sales teams that take a data-driven approach to their activities can increase their success rate by between two and five per cent. 

So, what are some of the most important metrics to keep an eye on and use to help better tailor your telemarketing campaigns to your target audience? 

1. Conversion rate

Naturally, this sits at the top of the metrics that you need to monitor because it is a direct reflection of how effective your telemarketing campaign is. The conversion rate shows you how many of the leads converted into qualified leads, sales or meetings. 

This one is pretty simple to understand – the higher the number, the better your telemarketing campaign is performing. But how can you know what “good” looks like?

According to a 2025 report, overall online marketing campaign conversion rates in the biotech sector sit at 1.8 per cent. For medical devices it’s lower, 1.6 per cent. Meanwhile, the pharmaceutical sector is a little higher at 1.9 per cent. 

Knowing this can help you manage your expectations. So, if your life sciences telemarketing campaign returns a two per cent or higher conversion rate, you can see that it’s performing the industry average for an online campaign in your sector. 

2. Call engagement rates

Call engagement is measured by the length of each call. Logically, the longer you can spend on the phone talking to a prospect the higher the engagement.

This means the person who has picked up the phone is receptive to the message and seeking to learn more about what you’re offering – great indications that they might progress further through your marketing or sales funnel. 

It’s often more useful to look at this figure rather than the number of calls being made each day. Fewer calls that last longer and indicate higher engagement are better than a lot of very short phone calls. 

3. Cost per lead

When you’re carrying out telemarketing activities to generate leads, it’s important to understand how much it costs your business to acquire each of those leads. But it’s not quite as simple as looking at how much you spend for each lead. 

Instead, you need to look not only at how much each lead costs to generate, but where they are coming from. This is how you can streamline your approach further by looking at where your highest value leads are coming from and pivoting your strategy to more effectively target them.

This is the kind of approach we take to all of our client campaigns. We’ll constantly monitor the data to ensure we’re delivering the highest possible value and we’ll recommend changes in the strategy when we think they can lead to better results and greater efficiency. 

We haven’t covered an exhaustive list of metrics that you can track to determine the success of a telemarketing campaign. There are many and not every metric that you can track is suitable for every business. 

These are three of the most commonly tracked metrics, however, and they are a good starting point.