Communication is available in all major trekking destinations from ISTD to STD or Sat-Phone, besides mentioned communication system. Cell phones are used by all Nepalese in whole Nepal. Where you can buy a local SIM for the trek as well, the difference is where you are. Sometimes the network does not work at its best, due to bad weather or in a deep valley and gorge as well enclosed by the high mountain range. 

Not at all, the trek is safe accompanied by our expert guide and strong loyal porters. The only health risk could be your personal medical problem or sudden unavoidable circumstance arise like bad weather, heavy snow-fall or rock falls which can happen any time anywhere. Where our guide is an expert taking care and precaution for the whole group for safety and making secure with the enjoyable holiday in Nepal.  

Not a problem, our staff and guide as well Hiker Himalaya representatives will be at the airport to receive you, welcome with a traditional welcome of garland and then escort you to your hotel. 

For altitude mountain sickness or AMS (Acute Mountain Sickness), the best is proper acclimatization and taking good rest, and drinking enough fluids like water, warm soup, and light green tea or hot lemon. Walking high and sleeping low is another good way of acclimatizing to high altitude. A trekker with these symptoms should descend to a lower level with an accompanying guide, staff, and close friends or relatives. In a very severe situation immediate rescue medical evacuation taking Helicopter service back to Kathmandu or the nearest city with good hospitals. But on this trek hardly people get altitude sickness as elevation gains slow and gradually and staying overnights at certain heights and walking slowly will prevent you from catching altitude sickness. 

Yes, you must get Travel and Medical Insurance in your country, in case of trip cancellation due to bad worse weather. As well roadblocks due to landslides, avalanches including political disturbance, strike, and arson can happen anywhere in the world apart from Nepal.  For medical insurance in case of serious medical problems with high altitude symptoms that you might need immediate rescue by the fastest means like Helicopter service. Where all the expenses of the whole journey due to incompleteness, your insurance comes in handy to get reimbursed. Hike Himalaya can only help you by issuing a letter with a doctor's certificate to support the claim from your insurance company.