Tap Done.
Activate Call Waiting
Activate the Call Waiting feature to be notified of an incoming call while you are on the phone. To activate the Call Waiting feature,
1 Tap Start > Settings.
2 From the Basic Settings tab, tap Phone Settings > Voice Call > Call Waiting.
3 Tap 
to activate the feature.
4 Tap Done.
Hold a call/retrieve a held call
While on a call, you can place a caller on hold. To place a caller on hold, tap Hold. While a caller is on hold, you may answer another call or use other features and applications. To retrieve a held call, tap Unhold.
Bar (block) calls
1 Tap Start > Settings.
2 On the Basic Settings tab, tap Phone Settings > Voice Call or Video Call > Call Barring.
3 Tap the Block incoming calls or Block outgoing calls field.
4 Tap the type of calls you want to bar.
5
11