VoIP&WAN This topic has 0 replies, 1 voice, and was last updated 23 years, 5 months ago by Dubiel. Viewing 1 post (of 1 total) Author Posts 16th August 2001 at 07:22 #20697 DubielGuest Does WAN technology (FR, ATM, MPLS)in every case mean fullduplex, therefore about 20kbps G.723.1 call required ? Author Posts Viewing 1 post (of 1 total) The forum ‘Voice over IP’ is closed to new topics and replies.