If you are looking for a great solution to stay connected without having to change your number for your upcoming trip!
Activating the call forward option in your iPhone by using your temporary virtual number you will achieve to stay connected with a minimum configuration.
If you have service with a GSM carrier, you’ll have access to call forwarding right in the iOS interface. To access it, fire up your Settings app and tap “Phone.” is very important to set up the call forward BEFORE you leave your country of origin
On the Phone screen, tap “Call Forwarding.”
Next, tap the “Call Forwarding” option to turn it on.
Type in the number to which you want to forward calls your Unisimcard virtual number.
Your phone doesn’t give you any indication to let you know it’s saved the number, but it has.
Just tap to go back to the Call Forwarding screen.
You’ll now see the number listed on the Call Forwarding screen. Note also that a new icon appears on your menu bar to remind you that call forwarding is active.
To turn call forwarding off, just return to the Call Forwarding settings screen and disable it. If you re-enable it in the future, it will remember the last number to which you forwarded calls and immediately begin forwarding them to that number again.
This makes it easy to turn call forwarding on and off with no extra configuration required unless you want to change the forwarding number.