There is much controversy about this. It is *possible* to do more than 1 card but sometimes it is not practical. Some issues:
-You may have an unresolvable interrupt conflict which Would Be Bad when you put in multiple cards -The performance of the cards will become degraded because of the massive amounts of interrupts generated. Using zttest in /usr/src/zaptel can give you a metric on this. If it drops below ~99.98% you will have a problem. -The TDMXXX series of cards requires a power connector from the PC's power supply to generate ring voltage. You may not have a spare one. So you use a splitter. Then you stick in another card. So you use another splitter, and so on and so on until you have this Gordian knot of splitters, and if one fails or becomes intermittent, they all do. Not an optimum solution. The reason the O Reilly book says to not do that is because of the issues above. However, it is possible and it does work. I have done it myself (although only 2 cards) but I was very careful about interrupts, I had spare power plugs, etc. -----Original Message----- From: Philip Edelbrock [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 11, 2006 3:57 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] FXS or VOIP Jim Freeze wrote: [...] > So for 5 phones, I would need 2 cards. And, the O'Reilly book says that > I should not put 2 cards in the same box, so I would need another computer. > [...] Whoa, I'm confused. Can't you use as many cards as you have slots? We've got just one 4-port card, but I've always assumed it was just a matter of purchasing and installing more to get 8 or 12 lines? Phil _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
