I've been looking around for a "commercially supported cloud-based VOIP PBX that provides dial tone" for the past few weeks and I keep coming up empty on the SIP phones.
Rates outside the U.S. vary wildly but you can check in the application before you dial. To call cell phones in China, for instance, is only 5 cents per minute, while France is 25 cents.
国外的评价让美国改变了很多,但是在你用电话打电话之前你可以在你的应用程序里检查一下话费。
3
Some businessmen dial others' private phones at random to promote products or service, affect others' private life.