call drop due to no dial tone This topic has 0 replies, 1 voice, and was last updated 13 years, 8 months ago by bipin. Viewing 1 post (of 1 total) Author Posts 31st August 2010 at 15:14 #64168 bipinGuest I am facing call drop issue due to no dial tone.Can anyone please tell me the reason behind this issue? how can i resolve that issue? Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.