Here are two of the most requested features I’ve seen for CallManager:
1. Hold ringback timer – this feature would make a call re-ring a phone if it’s been on hold X seconds – been requested since CM 3.0 came out.
2. Flash-hook – CME has this already – it would allow someone using an FXO line to get a call-waiting call – been requested for at least three years now.
Well, if there’s one thing I’ve learned, it’s that Cisco responds to customers pretty well. If you’re considering CallManager, or already have it, contact your local account team and tell them it’s urgent you have these features, or you’ll switch to Avaya which already has them 