www.tringtel.com/homedirect

Use viber as simple as that.

'Skype to Go' plan may be better for international calls. Here is the list of features that you can enjoy using the Skype to Go:
- easy and affordable calling services.
- Call at low rates depending upon the plan and the location.
- International Calling services in low rates.
- Call without the internet or any data plans.
If you want to know detail information this link may help you.
http://www.merokalam.com/use-skype-without-internet-connection/

This original post was from 2010 - 7 years ago. If you read through the post other users have already made their suggestion that worked for that period. Viber or Skype to go did not exist then. Adoption of smart phones were just picking up. Everybody now knows all these alternatives. Nobody goes to services like tringtel now. You guys are making suggestion to 7 year old post with present day alternatives. At least look at the dates.

Calling Nepal has never been easier than it is now. We have a number of apps, which offer a cheap international call to Nepal facilities. If you are staying abroad and have family at Nepal, or if you are someone working in Nepal from abroad, the below-mentioned list of apps will surely help you out. http://www.merokalam.com/cheap-international-calls-to-nepal/