[VoIP] Joining the Network Without a Mechanical Switch

John Novack jnovack at stromberg-carlson.org
Wed Feb 14 16:41:45 CST 2007



Rusty Dekema wrote:
> Some time back, I purchased a specific model of ISDN card from a guy in Germany that is supposed to be able to work with the "BRIStuffed" version of Asterisk in NT-mode; that is to say, it will act like a line card in a phone switch and let you plug in an (S/T) ISDN phone or TA to your Asterisk system. My progress on this project has been hindered by the fact that it appears that this ISDN card cannot coexist in the same system as my analog FXO/FXS cards. 
Probably that Digium TDM 400 card. It seems to have many hardware 
related problems, from not working at all with some motherboards, to 
coexisting with the Varion T1 card.
I finally got mine to work by loading the T1 drivers first, then the 
TDM400 ones.
I probably should remove the TDM400 completely, since 96 ports is 
PROBABLY enough for my needs in the near future.
The Sangoma A200 card is probably a better choice for anyone starting to 
build a system, if they choose not to go the T1 route.

John Novack



More information about the VoIP mailing list