Remote Office service allows conducting business not being in the company’s office. One can install such a program and with help of the Internet one can be connected to a company’s phone line, which will allow you using all the features available in the office.
Netropolitan Works builds secure VOIP in Thailand Asterisk systems and can do it in a way that makes sense for your business! http://www.NetropolitanWorks.com/VOIP-Thailand-lp.html