When you call a busy co-worker,you can leave a Callback requestfor a return call. There is no needto keep calling your co-workerback, hoping to find them idle.Here’s how Callback works: You call a busy co-worker and leave a Callback. When your co-worker becomes free, your phone automaticallystarts ringing. Once you lift the handset to answer the ring, your co-workerthen rings. As soon as your co-worker answers, you’ll have an Intercomcall between you and your co-worker.To leave a Callback at a busy co-worker:1. Call your busy co-worker.2. Dial or press .3. Hang up.If you dial 2 and stay on the line, you willCamp-On to your busy co-worker.4. When your busy co-worker becomes free, your phonewill automatically ring.5. Lift the handset to answer.6. Speak to your co-worker when the calls goes through.CLBK11CallbackYou don’t have torepeatedly call a busyco-worker back, hoping tofind them idle.