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What is Cloud Telephony ?

Now a days, very often one gets to hear the term ‘Cloud Telephony’, but what exactly is this ‘Cloud Telephony’ and why is it relevant or important in the field of IVR ?

What is Cloud Telephony ?

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In IVR, point of view, in a single sentence, Hosted IVR or IVR Hosting service where user can design, deploy their own IVR or Telephony Applications themselves is Cloud Telephony! Most probably, It has got its name to sound similar with ‘Cloud Computing’ and to bridge the gap between specialised telephony application developer with general computer/web application developer! And at the end, ‘Cloud Telephony’ does exactly that, it empowers any computer application developer to add Telephony functionality to their software applications!

Cloud Telephony means, you do not have to deal with telephony jargons, knowledge of how telephone works as long as you know what you want your telephone to do! And most of the time, it is pretty simple for everyone to understand, make/receive(pick up) a telephone call, hang up or disconnect the call, play an audio file, transfer the call, conference the call! With Cloud Telephony, these kind of telephony functions can be added to any computer application!

Cloud Telephony offers many advantages

Cloud Telephony offers many advantages over traditional on-premise telephony applications. Traditional on-premise telephony applications typically consisted of PBX, IVR and lot of wires through MDF ( Main Distribution Frame)! IVR application is the only visible computer application which provides software like function and computational capabilities! IVR could pick up an incoming call, play a greeting, ask to dial extension number, transfer the call, if the transferred number did not pick up the call, ask the caller to record voice mail!

All these kind of telephony functions ( and much more!) are now available which can be integrated with any computer applications without knowing about telecom technology or worry about telecom infrastructure like PBX/IVR!

Typically, in a cloud telephony, few hundred lines of coding is enough to provide above functions. One can just subscribe to Cloud Telephony service provider with monthly subscription fee, or actual usage basis, use their API in his own applications! With standardization of VXML, a user can become truly independent of coud telephony vendor or hosted IVR provider!

IVR and Cloud Telephony

I would actually wish to view Cloud Telephony as IVR 2.0 which have graduated from specific telecom domain to web domain like any other computer applications! Cloud Telephony or bringing IVR to the web world, has given a new and fresh lease of life to the aging world of IVR!

With cloud telephony, one can hope to find any interesting and innovative telephony application to appear, solving real world problems and serving diverse population!

Tropo, Twilio and India’s own Kookoo are few of the could telephony providers where one can play around with their applications by adding telephony functions!

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{ 13 comments… add one }
  • Chaitanya August 26, 2011, 9:47 pm

    Hi Uttam,
    Thanks for mentioning KooKoo.

  • V K Jaitly August 31, 2011, 5:00 pm

    Good Funda. I liked it.

  • anima farway September 12, 2011, 5:08 pm


    I have few more idea about cloud telephony . Cloud Telephony is dealing with such telephony product that are virtual.
    We are form knowlarity , a cloud telephony based compnay in India.
    visit compnay http://www.knowlarity.com

  • FayeMcC October 25, 2011, 2:16 pm

    Great definition on cloud telephony. This cloud telephony blog may also be of interest it defines what comprises a true cloud-based service, whether it is an IVR or a telephony PaaS such as Aculab Cloud. http://blog.aculab.com/2011/05/introduction-to-cloud-telephony-part-1.html

  • Gustavo Almeida July 27, 2012, 4:06 am

    What is the difference between Cloud Telephony and Computer Telephone Integration then?


    • Akhtar Edroos August 23, 2013, 6:06 pm

      Computer Telephony Integration (CTI) is the merging of two technologies (i.e. Computers & Telephony). A basic PBX with call-details and/or usage reporting capabilities can also be considered as a CTI device. Cloud Telephony in essence is a subset of CTI. Cloud Telephony utilizes the internet cloud to relay data (and sometimes voice) with the help of server-side CTI hardware/software. This allows the Cloud Telephony service provider to provide an end-user (SME/SMB), enterprise-like telephony features at a fraction of the cost. This model is usually based on a Scalable OPEX model rather than a CAPEX model and enables the end-user to Pay-as-they-Grow.

  • CYRIL ZHANG October 10, 2012, 5:54 pm

    Ehangcom provides PAAS. Pure IP based cutting edge high capcity SoC 1 U box has all the physical interfaces and all the media resources. We have a testing office in New Deli and can train software developer here. Please visit eng.ehangcom,com

  • rajesh October 26, 2013, 1:03 pm

    I hav e taken cloud phone from http://www.sandeshlive.com it is working fine. I have a very good experience with this company.

  • Nilesh August 18, 2014, 6:16 pm

    Interesting article. Cloud telephony has really grown now.

  • Fonebell January 7, 2015, 11:35 am

    Well Describe Mr. Uttam regarding cloud telephony. Now cloud telephony works and their needs in every business like hotel, education, banks, health industry etc. Please published next article how it works. Here I am sharing an article regarding cloud telephony. http://www.fonebell.in/3-wh-words-for-cloud-telephony-in-india-what-where-why/

  • cloud telephony providers in india September 10, 2015, 9:49 am

    Cloud telephony technique importate part of any business today and I taken service from IVRguru.com and today good service giving me

  • Rahul March 14, 2016, 12:13 pm

    Hi Guys,

    If anyone required PRIs from any provider with aggressive pricing kindly mail.


  • heena February 15, 2017, 9:17 am

    What is the difference between epabx and cloud based ivr . like if we already have epabx system in our office which also ip based , so why we instole cloud based system .

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