screen will show "only for emergency calls",
alerting you that you can only make such calls. If
you are within the network coverage, you can
also make emergency calls even without the SIM
card.
2.4.11 Call menu
The Call menu is only visible during an
active call, and features such as Call Waiting,
Call Diverting, and Multiple-party Call are network
dependent.
provider.
The call options include:
Mute
Do not send local voice.
Handsfree
Switch on the loudspeaker to amplify the
voice.
Hold
Put the current call on hold or retrieve the
call on hold.
Contact
your
30
network
service