Supernova,
Thanks for that BRI now working inbound and out.
I have one other problem though with voice-mail, If I forward an extension to VM it works as expected i.e. handset does not ring and VM box answers, after appropriate delay message indicator and lcd display indicates message waiting, however pressing message button produces "out of service". This occurs whether or not station is logged into voicemail.
any pointers to what I should be checking ?