Further information134 Aastra 632deud-1586/1.0 – R3.0 – 04.2013Communication system and software versionsYou want to activate a feature described in these Instructions but the system willnot let you.Some communication systems or software versions do not support all the features.The corresponding text sections are identified by a letter inside square brackets [a].The list below indicates which system versions support the relevant features. Contactyour system administrator for more information.R1.2 R2.0 R3.0[a] X X X[b] X X[c] X[d]www.InternetVoipPhone.co.uk | sales@internetvoipphone.co.uk | 0800 088 48 46