Alcatel Unleashed

I used 4039 for purpose Operator,I added on modul 80 key but it is fail.It only receive 40 key.I don't know how 4039 receive 80 key?

please for me advice!

Thanks and Best Regards.

4039 - you can connect 40 additional key module+10 additional key module.
And 4039 have 74 programmed key (on display module + navigator), key number 73, 74 - F1, F2.
Really for direct call you can use maximum - 8 keys on display module, F1 and F2 keys on set, and 50 on additional modules (40+10).