Symhpony

Arabic ( الْعَرَبيّة al-ʿarabiyyah or just عَرَبيْ ʿarabī ), in terms of the number of speakers, is the largest living member of the Semitic language family. Classified as Central Semitic, it is closely related to Hebrew and Aramaic, and has its roots in a Proto-Semitic common ancestor. In ISO 639-3, modern Arabic is classified as a macrolanguage with 27 sub-languages. These varieties are spoken throughout the Arab world, and Standard Arabic is widely studied and used throughout the Islamic world.

Modern Standard Arabic derives from Classical Arabic, the only surviving member of the Old North Arabian dialect group, attested epigraphically since the 6th century. It has been a literary language and the liturgical language of Islam since the 7th century.

Arabic has lent many words to other languages of the Islamic world, as Latin has contributed to most European languages. It has also borrowed from those languages, as well as Persian and Sanskrit from early contacts with their affiliated regions. During the Middle Ages, Arabic was a major vehicle of culture, especially in science, mathematics and philosophy, with the result that many European languages have also borrowed numerous words from it. Arabic influence is especially strong in Spanish and Portuguese due to both the proximity of European and Arab civilization and 700 years of caliphate government in the Iberian peninsula (see Al-Andalus).

A ringtone or ring tone is the sound made by a telephone to indicate an incoming call. The term, however, is most often used to refer to the customizable sounds available on mobile phones.

A phone only rings when a special "ringing signal" is sent to it. For landline telephones, the ringing signal is a 90-volt, 20-hertz, AC wave generated by the switch to which the telephone is connected. For mobile phones, the ringing signal is a specific radio-frequency signal.

A telephone ring is the sound generated when an incoming telephone call is received. The term originated from the fact that telephones notified the user to an incoming call by repeatedly striking a bell or bells, producing a ringing sound. This "Magneto" bell system is still in widespread use. The ringing signal sent to a customer's telephone utilized AC at 90 volts and 20 hertz in North America. While the sound produced is still called a "ring," more recently manufactured telephones electronically produce a warbling or chirping sound. The signal is sent for every ring and allows phone operators to provide several services with different kinds of rings (for example, rings with a shorter interval between them might be used to signal a call from a given number). When a phone rings -- either landline or mobile/cell phone -- it may carry Caller ID information and present it on a screen.