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Can someone please tell me how to make a video call on the phone? There is not option on the keypad, this was always possible on the samsung
I use Skype to make video calls.
Can we make video calls without using any apps?
I think most android phones dont support video calling without apps,this is afeature missing in android
But some companies like samsung have added this to some of their phones so that they can make video calls without any apps
there are other threads on the same topic, the answer its simple
Oh damn!! but that is so sad!! is there no way that Sony can do this, all the latest phones have this feature even though they are android. Even the micromax has video calling
video calls are not as simple as you understand it to be - yes if samsung include an app that allows this feature it will only be between samsung devices
you see in order to create a video call requires compatable software on both devices - that is fine if it's two samsung devices - there is no industry standard that supports this unfortunately
the reason why Sony (and others) have elected not to include this on their devices is because (as already explained) 3rd party software provides it - like skype
if google want to include this function as part of their OS well fine then a standard of sorts will be created between all of android - as it stands google have elected not to do this
take your issue up with them 
or install skype - but again you can only have video call with other skype users
this has nothing to do with sony or their devices - hope this answers your question
There is a standard which has been implemented by most phone manufacturers (probably Sony before they switched to android) that does not use the Internet but uses the 3G network, it is known as 3g-324M its been around for about 10 years and I think this is what the OP was referring to. . Apple iPhones don't support it and it's not part of the android system. It can be expensive to use depending on the mobile operator. I tried it once on my Nokia N8 as a quick 10 second test and it cost me a lot. I don't know of anyone that actually uses it in the UK but maybe it is more popular in other countries.
With the advent of the Internet, apps such as skype have really taken over but as you say both parties have to be running the same app for it to work.
a standard by "most phone manufacturers"? as you pointed out that's old, the new OS doesn't support that anymore, as there's better HD video calls, skype, Gtalk, tango, even the competition facetime, it's time to move on
Google do have a video call system/app - Google+ I use it all the time and it works brilliantly.
Indeed Gtalk/G+ its great