Multiple lines for internet calling

how come i need multiple telephone lines if am using the internet to make calls

For internet calling, there is no need for physical telephone lines. All you need is internet connection.

Since Voicent software supports VOIP, Skype, and physical phone lines, we use “line” for multiple things. If you are using physical line, then a line is a line, for Skype, a line is one running instance of Skype software, and for VOIP, a line is a channel. Basically, a “line” for Voicent takes care of one telephone call at a time. If you need to make multiple phone calls, you need multiple lines/channels for your VOIP account.