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Also known as caller tunes in some countries, such as India, [6] [better source needed] ringback music is a service offered by mobile network operators that allows subscribers to select a melody, music, tone, song or even personalized recorded sounds as a Ring-Back tone for all of their callers.
Airtel launched "Hello Tunes", a caller ring back tone service (Ringing Tone), in July 2004 becoming the first operator in India to do so. The Airtel theme song, composed by A.R. Rahman, was the most popular tune in that year. [14]
Ringing noise from an electromechanical telephone Example of a short digital tune which could be used as a ringtone on a mobile phone. A ringtone is the sound made by a telephone to indicate an incoming telephone call. Originally referring to the sound of electromechanical striking of bells or gongs, the term refers to any sound by any device ...
RBT (Ring Back Tone) is a service that allows you to set a melody, music, tone, song or any sound as a Ring-Back tone for your callers. You can set RBT for all your callers, while they wait to pick up the call. Many kinds of Caller Tune service providers are available in the Asian region. "Caller Tune" is one of them.
In many cases, when calling from abroad, busy, reorder and other call failure tones may be played by the local switch. Modern signalling protocols like SS7 send this information digitally; thus only a ringback tone or announcement generated by a distant switch in a foreign network will ever be heard by callers from other countries or networks.
A busy signal (or busy tone or engaged tone) in telephony is an audible call-progress tone or audible signal to the calling party that indicates failure to complete the requested connection of that particular telephone call.
Airtel launched 4G services on mobile from February 2014. The first city to get the service was Bangalore. [24] [25] Airtel has started their 4G services in Karnal and Yamunanagar in Haryana on 16 June 2015. [26] Airtel 4G trials has been started in Delhi from 18 June 2015. [27] Airtel had 95,173,000 4G subscribers as of June 2019. [28]
Airtel Kenya Ltd., a subsidiary of Airtel Africa (owned by Bharti Airtel), is the second largest telecommunications services provider in Kenya after Safaricom PLC. [1] It has a customer base of over 21 million subscribers of the total 68.9 million subscribers in the Kenyan market equivalent to 30.4% market share.