asterisk users - Mar 2005 - Time sync on PRI

Hi!

I have this setup at a customer:

PRI <-> (port 1) TE410P (port 2) <-> PABC
                           |
                      Asterisk

Before the Asterisk part was inserted the customer claims that their
PABC automatic changed the clock acourding to daylight saving time
from the PRI.

Now the customer says that it is not working any more.

We are using pri_net signalling up against the PABC and pri_cpe on the
other interface.

Does Asterisk send time syncronisation on pri_net signalling? Is there
a configuration setting that enables that?

Is it possible to sync the computer clock with the time from the PRI?
The Asterisk server is not connected to a network so NTP is not an
option.


-- 
Morten Isaksen
http://www.aub.dk/~misak/

Hi,

I am not sure about PRI, but I noticed that * does send date/time info
on BRI. Perhaps installing bristuffed Asterisk would solve your problem
(bristuff patches libpri, so whatever applies to BRI probably applies to
PRI as well).

As for syncing PC clock from ISDN line, I haven't noticed any parameter
that would control something like that. It would be a nice option, but
perhaps it would rise some security issues?

Niksa


Morten Isaksen wrote:
>Hi!
>
>I have this setup at a customer:
>
>PRI <-> (port 1) TE410P (port 2) <-> PABC
>                           |
>                      Asterisk
>
>Before the Asterisk part was inserted the customer claims that their
>PABC automatic changed the clock acourding to daylight saving time
>from the PRI.
>
>Now the customer says that it is not working any more.
>
>We are using pri_net signalling up against the PABC and pri_cpe on the
>other interface.
>
>Does Asterisk send time syncronisation on pri_net signalling? Is there
>a configuration setting that enables that?
>
>Is it possible to sync the computer clock with the time from the PRI?
>The Asterisk server is not connected to a network so NTP is not an
>option.
>
>
>  
>

On Thu, 31 Mar 2005, Morten Isaksen wrote:
> Before the Asterisk part was inserted the customer claims that their
> PABC automatic changed the clock acourding to daylight saving time
> from the PRI.
> 
> Now the customer says that it is not working any more.
> 
> We are using pri_net signalling up against the PABC and pri_cpe on the
> other interface.
> 
> Does Asterisk send time syncronisation on pri_net signalling? Is there
> a configuration setting that enables that?
No, asterisk currently does not send date/time. 
> Is it possible to sync the computer clock with the time from the PRI?
> The Asterisk server is not connected to a network so NTP is not an
> option.
Not at the moment. 

It would not be very hard to add both features to libpri. Libpri already 
has a function to decode and dump the time/date information. If I remember 
correctly the time/date IE should be added to the SETUP messages. I have 
been thinking about adding it, but have not had the time.

Peter