Blocked Call N300 This topic has 0 replies, 1 voice, and was last updated 14 years, 8 months ago by soc. Viewing 1 post (of 1 total) Author Posts 18th March 2010 at 00:46 #61581 socGuest Hi All, any one knows what the meaning of blocked call due to N300? This blocked occured on the 3G Network and detected by TEMS. Thx Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.