For my opinion, it will be easy to call outside of KTM than Kathmandu itself... coz lots of ppl are calling ktm at the same time and line is most of the time busy or all circuits are busy.... one of my freind from Narayangadh, he has been able to talk with his family back home may be you will be able to talk with ur bf sooon You can keep trying Kiki ji, hopefully you will be able to.. ohh yeah there is no difference calling from landline or cell phone.