Active Flip; Ip Prefix - Haier T3000 Manual

This function is subscription-dependent. Contact your operator.
4.7.2 With GPRS call
Allows you to Activate or Deactivate the call waiting for voice incoming calls while a GPRS
connection in ongoing.

4.8 Active flip

Allows you to set an incoming call by active flip of the phone or no.

4.9 IP Prefix

Allows you to set the prefix in order to make IP call.