Hi, sorry for the newbie hardware questions but here it goes scenario - our telco is feeding us e1 thru coax connection (unbalanced) - so the coax feed rx-tx goes to our old pabx using ericsson bp250 - what we wanted to do is to install asterisk in between hence telco<-->asterisk<-->bp250 using asterisk to power up the voip portion the problem is the we are getting crackling sound when we make calls from the old pabx extension, it seems that there is a lot of line noise due to emc. so here goes the newbie question: current setup is that from the coax we are using a balun using the given cables from sangoma will the cisco *CAB-E1-RJ45BNC *connector work on the 102 ie no need to use the balun -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070216/5be8fbd5/attachment.htm