In addition, the micro-will software itself has no recharge port, so the landlord will only generate traffic charges when using the micro-will, and will not generate other expenses except traffic consumption.
In addition, there are generally two ways to make profits from VoIP. 1 Earn income by asking users to pay the call charges, which is the case with some VoIP phones. 2. Earn income by advertising in software, which is the most typical one. But now VoIP has also created new ways of making profits, such as recharging phone bills and integrating online recruitment in VoIP.