The ideal blend of the two different call centre departments is best utilized when they work in tandem
. The lead generation is done through online methods. Telemarketing calls have restrictions imposed and it's not a good idea to call up people who don't want your telemarketing services anyway. It's a much better use of resources when you tap people who have already shown an interest online. You can track the users online and contact them through email, or you can call them up on the numbers that they leave for callback. In matters of customer care too, there can be a synergy between the two departments. You can answer the queries of the customers through emails and promotional mails as well.