iPhone 5s virgin US ok with R-sim
 

My iPhone 5s iOS 7.1.1 US Virgin ok with R-sim

code imsi : 3101201
call out & in ok
but SMS & internet
Sim card Mobifone Vietnam

Could you say - your r sim type air2 or mini2 or pro9?
"But SMS and Internet" don't work?

The menu was show R-SIM mini 2 v9.8

beside call in-out function no need to expect sms in-out, internet 2g/3g. we may wait till next commcenter patch or new Jailbreak.

good luck,