Whether a high-flying executive sitting in a meeting or a college student in a boring lecture. You’ve probably got your phone in silent mode to maintain expected decorum, but not all telephone calls are born equal.

* Someone messages you. It could be that attractive ex-classmate of yours calling to remind you of that lunch date you’ve been waiting for weeks or it could be a call centre employee offering you a life insurance plan.

* Sure you could get your hopes up, whip out your phone and then hide your feelings of disappointment, but the classier solution is to use the ViBe App (Android).

* The software uses a simple interface and lets you customise the vibration pattern used by your phone for calls and messages, letting you know when you’ve got an important call even when the phone is silent.

* Vibe can be downloaded at: https://market.android.com/details?id=com.base2apps.vibes&hl=en

* iOS 5 users can get the same functionality by playing with their default settings.