I am really grateful to all the experts on the mailing list who gave me some very good advice on this problem which I experienced in China. I think we have fixed the problem and the card is no longer reporting any problems. We are able to dial out successfully and we will continue to test.
Here are my findings of the problem with working with PRI in China. 1) MFC/R2 is the biggest distraction so far when I tested the line. When the line did not work, I was preoccupied with thinking whether the line is Euro-ISDN or MFC/R2. As I found out, the line which I ordered from NETCOM is definitely Euro-ISDN. As a matter of fact, the search on this mailing list about installs in China has returned almost 100% ISDN. So, the zaptel.conf should be pretty straightforward with no tweaking at all. 2) Communication with the telco is the other problem. When we placed the order, we just said we wanted an E1. They delivered the E1 no problem but we forgot to specify that the interface must be RJ48 and NOT RJ45. As you might know, RJ45 and RJ48 mean 2 totally different interfaces. RJ48 is for ISDN and voice connection and RJ45 is for data. So, after my local contact talked to the engineers, they came and replace the converter and plug the RJ48 into the Digium card and everything worked fine. Hope this helps with any future installs in China! _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
