Apple has made a small change in iOS 8.3 which will be helpful, where you can find automatic speaker phone call on iOS 8.3. Actually Phone calls via Siri was launched with iOS 8.0. Now with this newly iOS 8.3 update will come with a feature to Siri that allows users to activate the service hands-free by saying the phrase called Hey Siri if the phone is plugged into power.
Suppose the user asked the siri to make a call via Hey Siri hands free command, the call would strangely not automatically transfer to speakerphone. As per the tests conducted by the company this will change in iOS 8.3. As can be seen in the screenshots above, if a user asks Siri to make a phone call through speakerphone, the call will actually be made on speaker phone.
The above mentioned two screen shots pictures which show the functionality which is not available for current and previous version of iOS 8. In addition to this enhancement iOS 8.3 will brings the support for several new siri languages and a new set of diverse Emojis improved login for Google accounts and support for wireless car play. Apple is also working on an iOS 8.4 update that includes the companies upcoming new streaming music service and in future on iOS 9 probably include a focus on bug fixes and performance improvements. Apple has not announced when iOS 8.3 will ship but it recently gone into its public beta.