Mytunu allows you to make or receive calls from a SIP account. SIP Access is available for an additional cost of $0.005 cents (half of a US cent) per minute and it will follow the Mytunu Fair Usage Policy. For instance, every minute dialed from a SIP account to the US will have an extra charge of $0.005 cents per minute, even if you selected an Unlimited Plan. To enable SIP accounts please contact Costumer Service.