Videotron APN Settings for Blackberry
Vidéotron Internet and MMS Settings for BlackBerry 10 (Z10, Q10, Classic) and older Curve and Bold phones
The Priv, KEYone and KEY2 run Android, so they use the Vidéotron APN settings for Android; on an iPhone, see the Vidéotron APN settings for iPhone.
Vidéotron BlackBerry APN Settings
Internet APN:
Tap Settings -> Network Connections -> Mobile Network ->APN

Access Point Name (APN) : media.videotron
Username : Blank
Password : Blank
MMS APN:
Tap Text Messages ->…> Settings ->Text Messages ->MMS ->Advanced and fill in:

Access Point Name (APN) : media.videotron
Username : Blank
Password : Blank
MMSC Settings
MMSC URL : http://media.videotron.com
Proxy URL: Blank
Proxy Username: Blank
Proxy Password: Blank