I was thinking about sending Magic Jack to Nepal, but it needs computer to go with it. My parents are not very computer literate, so I need a suggestion about alternate to magic jack. Is there any other device, which I can connect to the internet cable directly without the compute, to mack a call? 

I am writing some suggestions, which do not need computers and use very less power.

 1. Google voice-phone (good price ~$40, comparable to Vonage except some reduced functions whic you would never use, e.g. 911 and calling Europe, Australia etc. Canada and US numbers are free, a google voice service)
 2. ooma hub (good price ~$120, not sure if it works in Nepal. No monthly fees required, if you buy an older model)
 3. Skype phone (good price ~$50-70)

I have been using the third one for over 3 years, but I would go with #1, if I had to get one today.

Nettalk duo is an alternate to magic jack. You can use it without computer. I am not sure about the voice quality.

 Thanks guys for the quick response. Does the google voice phone works from Nepal? These days for some reason you cannot make call using the gmail account from Nepal. I'm wondering if its gonna work too. And how easy is to set up the skype phone and whats the call rate? And has anyone tried the Nettalk duo. Thanks 

 mero bichar ma magicjack nai uttam hola..
tara batti nahuney desh ma tesko kaam chaina.. pheri

Try netTalk which can  be used without a computer. very easy to use.