Thanks for reaching out to us. After dialing the second party, were you able to hear that person? Once you establish a call with the second party successfully you would need to tap Merge Calls to bring on the first person called. Were you not able to hear any sound once the 3 way call was established or no sound with the 2nd party?
Sprint Social Care
Having trouble posting or viewing your Private Messages? We made an update to the Community registration process which requires you to validate your email, click here to read more about it.