Adding existing Yealink phone to RPS

[Stevev]

Have a question on how this might work.

We are taking over the Yealink phones for a customer that was with a different VOIP vendor. We want to use their existing Yealink phones and just register them to our SIP servers. We currently have a Yealink RPS account that we use to do this and until now we have only had to register new phones to this portal. We believe the current vendor is also using the Yealink RPS service. How do we apply the MACs for those phones to our RPS account so they redirect to our servers? Or how does it work when the physical phones are transferred to another vendor? If I try to add the MAC into our account, will it throw an error?