Addendum, after a few months use: am now now but disappointed because (a) 'swallowed' the device every 6-8 weeks, and does not report any incoming fax calls - which is fatal if you did not notice it. After reboot it gets back. Furthermore, (b) bounce the keys when entering DTMF tones (eg when entering a code in a conference call). After now 10 attempts when dialing into a conference call are not uncommon, is my conclusion: an attractive price device for hobby phone users, for business requirements, unfortunately, unsuitable.