T1 This topic has 0 replies, 1 voice, and was last updated 16 years, 1 month ago by anshad. Viewing 1 post (of 1 total) Author Posts 3rd May 2007 at 10:19 #47146 anshadGuest hi, i have a cisco voice router with a T1 card. which signalling method is used in the configuration of T1. i dont know which is the signalling method used by BSNL. pls reply……. Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.