Help with TVM200

[Tpanasonic]

Hi
I have a TVM200 connected to a KX-TDA600.
when the Automated Attendant answers, the caller cannot dial some of extension numbers directly.
so if i dial for example 162 when i hear the AA, immediately i get disconnected after hearing: Thank you for calling.

please help

Tpanasonic
SHARJA

 

[obtsystems]

Check the dtmf trace of the ports to see what is being received

 

[Tpanasonic]

how can i do this?