Call Waiting Ring Option

[jolouis]

Long history of users requesting this, and time and time again Yealink has said nope will not implement, not possible on their hardware.

Maybe that has changed with the T5 series, but all requests for this over the last few years on T4x and T2x have always resulted in Yealink saying "We will work on it", and then 6 months later finally replying to say "Nope not possible". I suspect there is something about the internal audio routing on the phones that for whatever reason will not allow the speaker to be used to do something different than what the handset speaker is doing... so if you're already on a call, the phone can't do something different with the speaker. That's just my guess though...