Zte SMART PTIME 7 VFD 600 User Manual page 59

To configure which calls use Internet calling:
You can configure your phone to use Internet calling (via Wi-Fi
or mobile data) to place all calls or just calls to Internet calling
addresses.
1. Touch the Home key >
field) > Settings > Calls > Calling accounts.
2. Touch Make calls with.
3. Select the option you need.
If you want to use Internet calling for all calls, touch
your SIP account.
If you only want to use Internet calling for calls to
Internet call accounts, touch your mobile network.
If you want to make a choice each time you make a
call, touch Ask first.
NOTE:
To select which accounts can make calls, touch All calling
accounts in the Calling accounts screen and switch on or off
the accounts.
To automatically stop Internet calls:
You can configure the phone to automatically stop Internet
calls when the other party does not support Internet calling.
1. Touch the Home key >
field) > Settings > Calls > Calling accounts.
2. Touch Use SIP calling > Only for SIP calls.
To configure your phone to receive Internet calls:
By default, your phone is configured to make Internet calls, but
not to ensure that you will receive them. But you can configure
your phone to listen for Internet calls made to an Internet
calling account you added to your phone.
1. Touch the Home key >
field) > Settings > Calls > Calling accounts.
2. Check Receive incoming calls. Checking this setting will
reduce your battery life between charges.
Set voicemail
1. Touch the Home key >
field) > Settings > Calls.
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