invocationOfCallHold NULL This topic has 0 replies, 1 voice, and was last updated 12 years, 5 months ago by ZH. Viewing 1 post (of 1 total) Author Posts 23rd November 2011 at 12:36 #67550 ZHGuest I got this message on a CDR Any idea what does it mean? Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.