I am looking at alternatives to the Digium TDM04B. The only one I can find is the Voicetronix openline4 but I cannot find a lot of information on it. Does anyone have any experience with it on Asterisk that they can compare to a Digium TDM04B. I am particularly interested in the built in hardware echo canceller and how well it works as opposed to software echo cancellation with a Digium card. Does anyone have it working in a production PBX environment? Does it work reliably on Asterisk. Is the a quality product? -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20050826/5e39b7ad/attachment.htm