Busy Here

[LamandreConsulting]

New to the Yealink...

Just set up a W52P handset and base unit combo with 1 additional handset.

The base unit handset combo set cam auto registered the additional needed to be registered, which I did.

The additional handset is recognized on the network and paging, intercom, etc work just fine.

however when a call is attempted to be made form the 2nd handset the message

"busy here" is displayed... even if no one is on the line.

when a call comes in the 2nd handset does not ring.

the 1st handset functions just fine.

What have a missed? as stated the 2nd handset was registered and appears to be associated with the base. In case it matters it is a RingCentral VoIP service account.