Using Phone - Lenovo IdeaTab A1000 Quick Start Manual

Phone
Touch > Phone. Now you can input your number or choose a number
from the call history or Contacts.
Phone
Options
Hide dial pad
*Multiparty service is required to use the teleconference function.
This function requires support from your wireless carrier.
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Show dial pad
Mute on/off
Microphone on/off
operators
Teleconference*
Add call
Suspend call