Conference calls
To start a conference call, call the first number. After they answer, touch Add Call and call the next number. When the next number answers, touch Merge.
Your phone number
Find it: Menu 
> Settings > About phone > Status
>My phone number
Your caller ID
To hide your number from the people you call, touch Menu 
> Settings > Call settings > Additional settings > Caller ID.
Call forwarding & waiting
Call forwarding can forward calls all the time, or only when your phone is busy, unanswered, or unreachable (not on the network). To set call forwarding, touch
Menu | > Settings > Call settings > Call forwarding. |
Call waiting lets you answer a second call when you’re already on a call. To turn off Call waiting and send second calls straight to your voicemail, touch
Menu 
> Settings > Call settings > Additional settings > Call waiting.
Restrict outgoing calls
To restrict your phone so that it can only dial a few numbers, touch Menu 
> Settings > Call settings >
Fixed dialing number
•To turn fixed dialing on, touch FDN disabled.
•To add or delete the allowed numbers, touch Manage FDN list.
Cool down
In very limited circumstances, such as where your phone has been exposed to extreme heat, a “Cool Down” message will appear. To avoid possible damage to your battery and phone, you should follow these instructions until the phone is within its recommended temperature range. When your phone is in “Cool Down” mode, only emergency calls can be made.
16Calls