Change the following in the sip trunk options
type=friend
username=pstn
secret=what_you_have_filled_as_password_in_the_pstn_tab_of_the_spa3000
Change the following in the sip trunk options
type=friend
username=pstn
secret=what_you_have_filled_as_password_in_the_pstn_tab_of_the_spa3000
Nope, without succes.