How to integrate Voice phone verification through Sinch in the Xcode?

Aug 25 at 7:01 PM
Can somebody suggest me the easiest and effective step by step guideline to initiate phone verification by using Sinch for Xcode? I came across a guideline from mobile app development company New Jersey that showed Objective C and Swift coding but it was a bit difficult. I would love to get some screenshots also if possible. Thanks in advance.