E1 and T1 on same Cisco Gateway This topic has 0 replies, 1 voice, and was last updated 20 years, 7 months ago by lanclamas. Viewing 1 post (of 1 total) Author Posts 19th April 2004 at 21:05 #26982 lanclamasGuest Has anyone succesfully configured both E1 and T1 on the same Cisco 5xxx gateway? If so which model? Author Posts Viewing 1 post (of 1 total) The forum ‘Voice over IP’ is closed to new topics and replies.