请看刚才查询到一个truphone号码实例 (Nov 19, 2016):
Porting your mobile number to Google Voice is unavailable
Your mobile number can not be ported at this time.
- This number appears to be from an area we don't currently support for
porting.
- We currently don't support porting from your carrier. We apologize and are
working on adding support for more carriers.
查询同一个地区的R+ 号码,就只有一个原因:
- This number appears to be from an area we don't currently support for
porting.
所以,Truphone暂时不能转入GV,也就是说,不能作为曲线救国转入GV的媒介。