Remove the first line and activate the second line you want to use by dialing this code **21* and press the phone number of the previous line and send "#" then send it.e.g **21*09090817791# then insert the previous line back.
Now you can be able to recieve call with both line.
Example:
if you are using mtn line and you need to use it together with zain. Remove the mtn line and put the zain then dial **21*the mtn number#
To cancel it:
put back the authorized line then press ##21# and send it.
Comments:
HOW TO USE NUMEROUS SIM CARD IN ONE PHONE
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