There is no definitive answer to this question, as the ideal B2B call connect rate will vary depending on your specific industry and target market. However, a good rule of thumb is that you should aim for a connect rate of at least 50%. This means that out of 100 calls you make, you should be able to connect with at least 50 of your potential customers. If you can consistently maintain a connect rate above 50%, then you're likely doing something right and are on track to generate a healthy amount of leads from your B2B calling efforts.