Re: ACTS / PTB modem refclock

Heiko,

The phone string is copied verbatim to the modem as per Hayes command set. You can test by sending the same string to the modem using a terminal program. You can also test using the NTP filegen facility and flag 4 set on the fudge command. The modem protocol and command responses are written to the clockstats file.

Dave

Heiko Gerstung wrote:
Dave,

thank you for your fast reply. I tried exactly that configuration, but used the PTB phone number (which works in a test with cu, as described).

When I first did not include the atdt string, ntpd said "no answer" in the syslog. When I include the "atdt" I can see no modem activity at all and I get zero log entries (reach stays at 0).

I will try again tomorrow morning when I am back in the office and keep you posted.

Cheers,
Heiko


mills@xxxxxxxx schrieb:

Heiko,

server 127.127.18.1 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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