Blackberry 9788 Smartphone 6 0 User Guide

2.Press the  key > Options.
3.In the MMS section, in the Message Filtering section, select the Reject Anonymous Messages check box or Reject 
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 check box.
4.Press the  key > Save.
Store text messages on your SIM card
Depending on your wireless service provider and wireless network, this feature might not be supported.
If your BlackBerry® device uses a SIM card and you set your SIM card to store text messages, your text messages still appear in 
the Messages application.
1.On the Home...

Set a wireless network type for sending text messages
Depending on your wireless service provider and wireless network, this feature might not be supported.
1.On the Home screen, click the Text Messages icon.
2.Press the  key > Options.
3.In the SMS Text section, do one of the following:
•To use only one network type to send text messages, change the Network To Send Over field to Circuit Switched or 
Packet Switched.
•To use either network type to send text messages, which might be beneficial when...

Cell broadcasting
About cell broadcasting
Cell broadcasting is designed to enable wireless service providers to use SMS text messaging to send information to all 
BlackBerry® devices in a specific geographical area simultaneously. You can receive cell broadcast messages that contain a 
specific type of information by subscribing to a cell broadcast channel that provides that type of information. Different cell  broadcast channels send different cell broadcast messages. For example, one cell broadcast...

Rename a cell broadcast channel
1.On the Home screen or in a folder, click the Options icon.
2.Click Device > Advanced System Settings > Cell Broadcasting.
3.In the Channels section, highlight a cell broadcast channel.
4.Press the  key > Set Nickname.
5.Type a name for the cell broadcast channel.
6.Click OK.
7.Press the  key > Save.
Security options for messages
Block incoming messages
If your email account uses a BlackBerry® Enterprise Server, you might not be able to block or unblock PIN messages from...

6.Click Add.
7.Press the  key.
8.Click one of the following menu items:
•Add Email Address
•Add Phone Number
•Add PIN
9.In the Enter new exception dialog box, type the contact information.
10.Press the  key on the keyboard.
11.Press the  key > Save.
Reset a blocked message counter
If you block messages, the blocked message counter tracks how many messages your BlackBerry® device has blocked. You can 
set the blocked message counter back to zero.
1.On the Home screen or in a folder, click the Options...

4.If necessary, on the Attachments screen, click an attachment.
5.If necessary, in the dialog box, select an option.
Related information
I can't turn on cell broadcasting, 113
Save a file or an attachment
To perform this task, your email account must use the BlackBerry® Internet Service or a BlackBerry® Enterprise Server that supports this feature. For more information, contact your wireless service provider or administrator.
1.In a message, in a calendar entry, or on a webpage, do one of the...

Set font options for a file or an attachment
1.In a file or an attachment, press the  key > Options.
2.Change the font fields.
3.Press the  key > Save.
View properties for a file
You can view the size, author, publication date, and other properties of a file.
1.On the Home screen or in a folder, click the Media icon or Files icon.
2.Find and highlight a file.
3.Press the  key > Properties.
Contact cards
About vCard contact attachments
vCard® contact attachments (.vcf files) contain information for a...

S/MIME-protected message basics
About signing and encrypting messages
If your email account uses a BlackBerry® Enterprise Server that supports this feature, you can digitally sign or encrypt messages 
to add another level of security to email and PIN messages that you send from your BlackBerry device. Digital signatures are  designed to help recipients verify the authenticity and integrity of messages that you send. When you digitally sign a message using your private key, recipients use your public key...

Attach a certificate to a message
You can attach a certificate to email and PIN messages.
1.When composing a message, press the  key > Attach > Certificate.
2.Highlight a certificate.
3.Press the  key > Continue.
Download the certificate used to sign or encrypt a message
If a certificate is not included in a received message or is not already stored in the key store on your BlackBerry® device, you 
can download the certificate.
1.In a message, highlight the encryption indicator or a digital signature...

2.Press the  key > Display Sender's Certificate or Display Encryption Certificate.
View encryption information for a weakly encrypted message
1.In a weakly encrypted message, highlight the encryption status indicator.
2.Press the  key > Encryption Details.
S/MIME-protected message status
Digital signature indicators for S/MIME-protected messages
IndicatorDescriptionYour BlackBerry® device verified the digital signature.Your device cannot verify the digital signature.Your device requires more data to...