Telex via Hoppie not working

[pokertour]

Hi there,

In the A350 on FS2020 or FS2024 the telex message are never received in the plane. CPDLC is working great by the way.

In our VA we are using the TELEX to send parking information.

We have done few try, with the same Callsign, CPDLC is received but not the telex. Telex format :
connect.html?logon=gFR54Fr&from=KLM&to=KLM123&type=telex&packet=This+is+a+test.

Do you have any idea ?

Thank you