Solve it the first time, and give them a reason to stay.

First contact resolution is the cheapest thing you can improve. And the customer notices it, too.
Every retention call has a dollar value on it. Practice is how you hold onto it.
An agent has to diagnose a fault and calm someone down at the same time. Both are trainable.
In-house, offshore, vendor-run. A customer shouldn’t be able to tell which one they reached.
Rehearse the cancellation call, the offer and the objection, so the save rate stops depending on who answers.

Find the problems that generate second and third calls, then fix them at the source.

Work through a real fault on real systems, before a customer is waiting on the diagnosis.

Automate the high-volume conversations, so your people spend their time where it changes the outcome.

Usually the save desk, because the return is easy to calculate and the population is small enough to move quickly. Retention conversations have a dollar value attached, so a change in save rate shows up in the numbers within a quarter. From there, most clients extend into technical support and billing.
Yes. Agents work through faults on the actual systems and tools they use, so the practice covers the diagnosis as well as the conversation. Software simulation is part of the platform rather than an add-on.
It is one of the reasons carriers use us. The same practice, scoring and certification apply whether the agent works for you or for a vendor, which gives you one view of performance across the whole operation rather than a report from each partner.
The routine calls automating out is what makes the rest of this matter. What reaches a person now is the fault nobody could diagnose, the bill nobody could explain, the customer who has already decided to leave. Those agents need more preparation than the ones handling balance checks ever did.
Repeat contact is usually a symptom rather than a problem in itself. Conversations get analyzed for what caused the second call, which is often a policy, a process or a skill gap rather than a bad agent. That finding then becomes the coaching and the training behind it.