In regards to international calls.
If you are calling from the US then only calls to the US are free at this time. There may be services. In the future that may offer international calling rates like skype and vonage. Calls made from cruise ships will depend on WHERE the cruise ship is located. However, most cruise ships will have a secured wifi system. You may not be able to utilize the system. If you are in Europe for instance and you are on a friends home wifi system making a call then the call is considered as "originating" from the US and will be billed as such. If you make a call to a local European number from that wifi system then it will be billed as a local European call. The very important difference between calls made on wifi systems outside of the US is that they will NOT seamlessly continue if the customer leaves the wifi area the call will drop
In regards to the routers.
The d-link and Linksys. They both offer 2 antennas. On the d-link one is internal and one is external. They are both 49.99$ and are free after rebates. Its recommended that customers use t-mobile's routers than their own. Battery life for their phone , voice prioritization and a one touch button for a security key are the larger reasons as well as customer care won't troubleshoot any non T-Mobile routers. 5 lines can be supported on one router. Each line uses approximately 70kbs. The routers will support up to a 300to400 foot radius depending on construction. Homes that are 2700 sq feet and less can use one router. And homes larger about 4000sq ft or above may want to consider 2 routers.
Hope this helps out a bit. If you have any other questions then let me know. Sorry if there is any typos I typed this up on my device. Jonnyxedge
If you are calling from the US then only calls to the US are free at this time. There may be services. In the future that may offer international calling rates like skype and vonage. Calls made from cruise ships will depend on WHERE the cruise ship is located. However, most cruise ships will have a secured wifi system. You may not be able to utilize the system. If you are in Europe for instance and you are on a friends home wifi system making a call then the call is considered as "originating" from the US and will be billed as such. If you make a call to a local European number from that wifi system then it will be billed as a local European call. The very important difference between calls made on wifi systems outside of the US is that they will NOT seamlessly continue if the customer leaves the wifi area the call will drop
In regards to the routers.
The d-link and Linksys. They both offer 2 antennas. On the d-link one is internal and one is external. They are both 49.99$ and are free after rebates. Its recommended that customers use t-mobile's routers than their own. Battery life for their phone , voice prioritization and a one touch button for a security key are the larger reasons as well as customer care won't troubleshoot any non T-Mobile routers. 5 lines can be supported on one router. Each line uses approximately 70kbs. The routers will support up to a 300to400 foot radius depending on construction. Homes that are 2700 sq feet and less can use one router. And homes larger about 4000sq ft or above may want to consider 2 routers.
Hope this helps out a bit. If you have any other questions then let me know. Sorry if there is any typos I typed this up on my device. Jonnyxedge