[Asterisk-Users] Cheap Time sources which is best?

[Tzafrir Cohen]

On Sat, Sep 24, 2005 at 10:23:42PM -0400, Steve Gladden wrote:
> On the same P2 450Mhz box.....
> 
> I have tried both UHCI usb on a 2.4 kernel
> and enhanced RTC on a 2.6 kernel.
> Have not tried UHCI USB on a 2.6 kernel as of yet.
> 
> Both seem to work GREAT.
> 
> I have read in many places to be sure to use a digium card as a time source
> and not to reply on the cheap solutions.

What does zttest tell you?

How good is it as a diagnostic tool? What can it tell me?

> 
> However I have regular meetme sessions of 5 and 6 people at the same time
> that frequently go on for an hour or so and we have not noticed any
> problems yet.
> 
> I'd like to know 'what is better' the enhanced RTC or UHCI-USB.

RTC, I figure. The USB code is just a hack. However the 2.6 kernel has
some on-going work regarding timers.

> and at what point do you start to need a digium board for timing?
> 
> Seems that for even a low volume production system that I have not needed
> a recommended timing source yet.
> 
> Thank you for your insight!

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