from my understanding Iframe is not supported since spring 2016. My question is this: im trying to call softphone from salesforce, by creating a call center, and visual force page with the openCTI functionality. but how can I call a third party software if Iframe is not supported in salesforce anymore.
Based on salesforce: 'It functions in conjunction with an iframe offered by salesforce.com to embed 3rd party call control/ softphone applications.'
my code is taken from link to sample code