I just came across http://www.voip-info.org/tiki-index.php? page=Asterisk%20TDMoE and seemed very interesting. It prompted me to question whether it would be more efficient to do TDMoE or IAX2. The application is very simple. I have two asterisk boxes. One is strictly a gateway to the PSTN using multiple T1s. The second is where all my extensions and dialplan are defined (the workhorse for the office). Currently, I have them connected using IAX2. Would it be more efficient if I connect them using TDMoE? Since the second asterisk box does not have any digium cards, I think I'm having timing problems (see my previous posts about MeetMe). By doing TDMoE, will it solve the dependency of having to have a local timing source on the asterisk box? Thanks, Daniel