Support needed: Huawei K3765 voice activation doesn't work

[outlawbt]

I bought 4 credits to activate the voice feature of my Huawei K3765 dongle.Device detection works well, however when I try to activate the voice feature it's not detecting the COM port.

Found Applications port COM4

Found modem : K3765
Model : Vodafone K3765
IMEI : 354XXXXXXXXXXXX
Serial NR. : R0A5TA10AXXXXXXX
Firmware : 11.126.03.09.00
Hardware ver. : CD25TCPV
Voice feature : disabled
SIM Lock status : unlocked
Wrong codes entered : 0 (unlock attempts left : 10)

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Activating voice for Huawei modems Vodafone K3765 ...

Please define proper COM port, or select autodetect!

[Valdemaras]

Please attach a screenshot of the whole software window with detection visible.