When you are traveling you can also use the "Call Now" solution. Basic requirements are: any kind of internet connection and a web browser.
Calls can be activated from your admin center. You login to your account and state what number to call and the number you want to call from. Our system will then call you first. After you answer the system will automatically call the number you specified. More instructions here.
You can also trigger a "Call Now" event from your mobile phone browser if it has an internet connection.
Another possibility to use "Call Now" is to hit URL specified below. It may be convenient to bookmark it in your cell phone. Then for making calls you'll only need to adjust destination number.
Where: ACCID - your account id PINCODE - your pin code SOURCE_NUMBER - your phone number DEST_NUMBER - callee phone number