In the Manage Sim you have lot of imormation and sim's manage capeabilities.

Here are  description about sim's information as  in the screen shot .

• Phone Displayed:        The displayed  phone number  to your other side call.
• Account Balance:        Your sim current balance
• Account Status:         You can activ/deactive your sim  (Deactive -not working until reset to Active). 
• Voip/Sip Setting:       When set, you can received low cost calls in via predefined web dialer
• Data Status:                  Active / Deactive your DATA service.
• Voice Mail:                     When set, record and play your voice messages
• Roaming Profile:          Your active rate list  (keep it Standard Profile)
• Translation Profile:      Choose your country profile (i.e if you choose Israel meaning call like you are calling from Israel , without "00972" or "+972" , and also can call from cotacts list without need to change it to international phone number).
• Sim ICCID::                    Your sim serial number, printed on sim card.
• Set Call Forwarding:   Forward your calls form the globale sim to your other phone number.
• Get VoIP Details:         Get your sip/voip  user name and password to set in web dialer, enable to receive low rate voip calls.