voice trunks and trunk groups This topic has 1 reply, 1 voice, and was last updated 17 years, 9 months ago by erox. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 4th May 2005 at 19:07 #41009 andy williamsGuest what is a voice trunk? Is it the 64kbps PCM time slot on an E1. If so then is there 30 voice trunks on a voice trunk per E1 PCM system? 9th May 2005 at 06:51 #41010 eroxGuest All you said is true, allthough in some situation or some switches (e.g Ericsson) we can create 31 voice trunk in E1 PCM. (If there is no C7 trunk at 16th slot) Regards! Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Telecom Design’ is closed to new topics and replies.