https://www.voipmarket.it/telefoni-accessori-e-licenze/t42t41-wallmount-yealink-t42t41-wallmount-wall-mount-support-per-telefoni-t40p-g
T42T41-WALLMOUNT Yealink Wall-mount support per telefoni T40P/G, T41G/S, T42G/S
T42T41-WALLMOUNT Yealink Wall-mount support per telefoni T40P/G, T41G/S, T42G/S
https://helpdesk.telebroad.com/support/solutions/folders/4000020276
Yealink T42G : Teleboard | Support Center
yealinksupportcenter