Our client has a UC520 and 20 DDI's for incoming calls. Three of the DDI's are assigned to blast groups and the others go users extentions. Incoming calls to the user extensions go to voicemail but i have a problem with the blast groups. The groups are set to forward to one of the extensions within the group, which in turn is set to go to voicemail. This was working when the UC520 was installed. THe only major change has been the setup of Extension Mobility for meeting room phones but none of these are in any of the groups. Does anyone have any ideas to point me in the right direction?