Communication-Internet, wifi, and cell phones available in many places, Dial code +977
STD and ISTD are widely found in all parts of Nepal in towns and cities and as well in villages.
Internet services are found in all parts of Nepal where there are electric power facilities in most of the towns and cities with Wi-Fi services.
In tourist areas hotels, restaurants free Wi-Fi services, a telephone call can be made from towns and cities and from your own hotel rooms after dialing the code 977 and adding respective numbers overseas.
For Sat and cell phone networks are easily linked, but in some mid hills and valley gorges, the service of cell / sat phone can be weak or nil due to blockage of hills and mountains.
There are many Cell companies, where one can buy a SIM card at a reasonable cost after showing your ID and passports.