Samsung A900 - Manual (Page 234)

210 Section 3B: Sprint PCS Vision
Can I make calls and use Sprint PCS Vision services at the same
time?
You cannot use voice and Sprint PCS Vision services
simultaneously. If you receive a call while Sprint PCS Vision
service is active, the call will be forwarded to voicemail. You
can place an outgoing call anytime, but it will interrupt any
in-progress Sprint PCS Vision session.
When is my data connection active?
Your connection is active when data is being transferred.
Outgoing calls are allowed; incoming calls go directly to
voicemail. When active, the or indicator flashes on
your phone’s display screen.
When is my data connection dormant?
If no data is received for 10 seconds, the connection goes
dormant. When the connection is dormant, voice calls are
allowed. (The connection may become active again quickly.) If
no data is received for an extended period of time, the
connection will terminate.
Can I sign out of data services?
You can sign out without turning off your phone; however,
you will not be able to browse the Web or use other
Sprint PCS Vision services. While signed out, you can still
place or receive phone calls, check voicemail, and use other
voice services. You may sign in again at any time. To sign out,
go to Settings > Power Vision > Disable Vision in your phone’s
menu.