Major ISDN failure to Rome

[NDJeff]

Hi,
boy did I have a bad connection to Rome. Connected from here at Notre Dame in South Bend to American Univ. in Rome via HDX 9004 with analog cameras via ISDN 256kb to a Polycom 7000 in Rome.
Tested four different days all was great. So I'm confident... the big day arrives... everyone is seated and ready.
Started the conference and 7 min in.. DUMPED! Of course all the officers were in the room. so I reconnect.. all fine for 14 more minutes... dumps AGAIN... call back. 7 more minutes... dumps AGAIN. this time I down speed to 128KB and connect again and it was stable for the rest of the conference.
So now, I'm beating myself up trying to figure out what the deal is.
I have another one to connect with ASIA next month and I can't let this happen again. I thought there was supposed to be a QOS for ISDN? What did I do wrong and how could I have done better?
Any advice on Asia?

[Tallman2]

Hello NDjeff
It is more than likely an issue with one of your 2 ISDN lines, try unpluging line2 and do a test for about 1 hour on line 1. Check your stats to see if you have any erros built up if not do the same thing with line 2.
I assume these are these lines are BRI circuit not PRI, if they are PRI it could be anty of the 24 possible channels.

Good luck

[11B-33T]

I have another one to connect with ASIA next month and I can't let this happen again. I thought there was supposed to be a QOS for ISDN? What did I do wrong and how could I have done better?
Any advice on Asia?

You may want to coordinate with the folks in Asia to conduct a few test calls (yer budget folks may scream :D ) to the make sure it works. If there's any line issues you'll have time to troubleshoot e.g. have the TELCO provider conduct a BERT of your ISDN lines. As for QoS, you need to read really deep into your service contract to see if this is addressed.

[mazzarak]

just because you had a big fault, doesn't mean it was on your side. Connect to other sites to test, just to see if you can clarify which side actually caused the fault.

If you are really worried, you could always enlist a bridging company to trouble shoot, sometimes that's the only way of working out where a fault is on a P2P.

So before getting worked up, about Asia, be sure that the problem really was on your side.