If youDownload Google Voice App you willalready know that you can make free calls using the google voice talk application. There is even a nifty chrome extension that allows you to do this easily. But it is not perfect. To start with, you want people to be able to dial a number and have your application ring on your PC or your mobile phone. For this, you need to sign up for a Google voice number and set it to forward incoming calls to your google app messaging application. So far so good.
Initially, this was only available on the desktop version of Gmail till few years ago when google decide to embrace the ever growing market of mobile phone users. Users of google voice call on smartphones or tablets will now be able to make use of this functionality. There is a cool app called Google Voice App that looks like a desktop client on Android OS and is able to provide this functionality on the go.
But it runs into problems since google voice call will only ring one device at a time. So if you are running google voice call on your smartphone, you will not receive the incoming call notification in time and will only receive or make call when the internet is enabled or when usingWi-Fi.
The workaround is to use a service known as IPKall in collaboration with the SIP protocol via a soft phone voice over internet protocol (VoIP) clients like CSIPSimple. Visit the IPKallwebsite and sign up for a free phone number. Then obtain another free account with an SIP VoIP provider such as sip2sip.info.
What you need to do is forward incoming calls to your IPKall number to your SIP service. The second step is to set up your Google voice account so that all incoming calls to your Google voice number go to your IPKall number. This is the hierarchy:
Google Voice number ->IPKall -> SIP service
Once you have confirmed that making calls to your Google voice number rings the SIP service, all you need to do is install an SIP client on any number of mobile devices that you choose. All of them will ring at the same time whenever someone dials your Google voice address.
Unfortunately, making free calls from smartphones and tablets using your Download Google Voice App number is not easy without an additional application like GrooveIP. But it's easy if you're using the desktop Gmail client to do so.
Soon downloading Google Voice App will allowSIP forwarding directly from its settings page instead of making a userkeep on searching in circles. It seemed for a while a couple of years ago that they are going to do this but keeping in mindof the telephone providers, they have to pull back. So that they do not incurring the wrath of telephone carriers on whom they depend on so much for propagating its Android operating system.