A song is a relatively short musical composition for the human voice (possibly accompanied by other musical instruments), which features words (lyrics). It is typically for a solo singer, though may also be a duet, trio, or for more voices (works with more than one voice to a part, however, are considered choral).
Computer telephony integration, also referred to as CTI, is technology that allows interactions on a telephone and a computer to be integrated or co-ordinated.
The following functions can be implemented using CTI.
Calling Line Information Display (Caller's Number, Number Called, IVR Options)
![Das Konzert [The Concert] (c. 1490, Lorenzo Costa).](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Ercole_de%27_Roberti_003.jpg/225px-Ercole_de%27_Roberti_003.jpg)
A song is a relatively short musical composition for the human voice (possibly accompanied by other musical instruments), which features words (lyrics). It is typically for a solo singer, though may also be a duet, trio, or for more voices (works with more than one voice to a part, however, are considered choral).
Computer telephony integration, also referred to as CTI, is technology that allows interactions on a telephone and a computer to be integrated or co-ordinated.
