I would be able to actually answer the question on the delayed "Hello Hello" response from a technical standpoint. Yep! There is a technical explanation for that.
Large banks and telemarketing companies use what is known as a Auto Dialler. Very simply, the AD is a system that reads through a database of numbers, dials them and upon connection to the other party, it will connect the agent or telemarketeer. This system does not allow the agents to dial on their own. It will not even pass calls which are busy, or voice mail or answering machines.
So why is there a lag? Well, it depends on how much time it takes for the call to be given to the agent. The industry standard is a delay of 2 seconds. Which means when you say the first hello, you should already hear the other person talking to you. Any further, then they have a shoddy network or system.
How do I know this? I work for the Numero Uno company that makes this technology. Dont blame me! I only help build and not run.
