[ntp:questions] ACTS / PTB modem refclock

Danny Mayer mayer at ntp.isc.org
Wed Apr 25 03:09:48 UTC 2007

Heiko is trying to do this from Germany so it would need an additional
international dialing code, with possible pauses required for modem
synchronization. Who knows what else is going on.


mills at udel.edu wrote:
> Heiko,
> server minpoll 12 maxpoll 17
> phone atdt913034944774 atdt917195676742
> The driver first tries NIST Boulder and if that fails USNO Boulder. Note 
> from my office it first dials 9 for an outside line, then 1 for long 
> distance.
> Dave
> Heiko Gerstung wrote:
>> Hi!
>> I am currently trying to setup a box which uses the ACTS refclock driver 
>> to use the PTB modem service as a time source.
>> Unfortunately the documentation regarding this driver is not that 
>> detailed and I am therefore looking out for any working example 
>> configurations of such a driver.
>> Every time I restart ntpd, it tries to dial out but fails and says "no 
>> answer", but when I use cu with the very same phone number, it works 
>> flawlessy.
>> Any hints?
>> Regards,
>> Heiko
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