Tzafrir Cohen wrote: > Yeah, right. And we have no SIP compatibility issues at all. It is also > funny that you reflect the quality of old PRI card of one company and > yet ignore all the past mishaps of SIP devices.
Oh, no, I didn't mean to imply that. There are plenty of SIP interop problems with Asterisk as well. I was actually just debugging a really recondite one yesterday with MetaSwitch. But nothing quite so dramatically abysmal as the TDM stuff. Of course, that could just be my particularly unfortunate experiences or shortcomings; I make no claim as to the universality of what I am saying. > I have stared long enough in both PRI traces and SIP traces. Both > protocols are complex. I've seen very strange things happening with SIP. Agreed, most certainly. In fact, it's funny how often I've heard that SIP is a "simple" protocol. "Oh, you know, it's like HTTP, basically." Um, no, simple it is not. > Now please be specific about what is wrong with running a T1 into a PC. I don't have a lot of specific objections, as I am not a hardware expert. I was just commenting on what seems to work well and what doesn't. If I had to speculate, there are backplane/bus throughput and timing differences between dedicated, embedded TDM hardware chassis with T1 interfaces and PC motherboards with offboard cards. One surely must be more imprecise, inconsistent and replete with compatibility problems than the other. I could be very wrong. > I heard some people run Gigabit-ethernet into a standard PC. But maybe > that also takes a dedicated cisco gateway. Ethernet is a data animal, not a synchronous voice animal. But then, a goat is not a synchronous voice animal either. -- Alex Balashov Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671 Mobile : (+1) (706) 338-8599 _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
