Avaya 5410/5420 "incompatible" state to remote site 1

[573dawn]

Hi to all. I have a new Avaya phone system giving me all kinds of trouble. The system is an IP400, with an IP 406 Office, and IP 400 digital station boxes at my main location. We have 4 sites overall, connected by PTP full T1s.

On a completely random and totally unpredictable basis, any location might get "incompatible" showing on the phone display when trying to reach another location. It happens most between our 2 largest sites.

We have troubleshot this to death and can't find a solution. The T1s are in no way overloaded (avg usage under 2%), and are not taking any more errors than one might expect to see. Overall latency between any 2 elements on the entire network generally doesn't exceed 28-30ms.

I am monitoring all manageable elements with Solar Winds, and there are no network events that can be correlated with the outages, which can last anywhere from a few seconds to hours. Resetting the voice switches seems to bring the system back, but obviously that is not a solution.

Has anyone heard of this? Our vendor has indicated that there are no cases with Avaya that present this issue. For anyone with a reply, our email server is down right now, and should be up later, but I have ICQ (member#496-338-187)on and will check back often.

Thanks, Dawn

 

[573dawn]

jslewis, yes, I think it is in the software/configuration now too, there was another post I saw, can't remember which I've looked at so many, where a poster was actually recommending that the admin go to a previous version of the software.

I haven't had an incompat all day (knock on wood) after changing the lines. Of course the real test will be tomorrow and Saturday, when our phones ring almost non-stop.

PTP T1s seem fine, we can't do fiber between locations unless we were willing to spend literally millions (got a quote once). I would think that fiber would be fine, especially since your buildings are relatively close together. Have you done any network monitoring where you can look at what the network is doing right when the problem occurs? I have, and there was nothing to point to.

I know this system is supposed to be the very cutting edge, and quite new, but I am starting to think that the hardware isnt what's new, it's the software. I wonder how many other people might be experiencing this.

 

[573dawn]

We also seem to get some issues with twinning and dropped calls, do you use twinning at all?

Time to go, but I'll check back in later tonight or tomorrow morning.

Thanks, Dawn

 

[aarenot]

G711 is recomended for faxing voip. Although if you have a fax server, I would assume they would go to a fax server at the main site(same site as the PRI, and be emailed out from there via attachments to the emails. If you still have a fax machine at each site, I would try to use a local analog trunk, not through the phone system if possible. If you need to use the remote trunks for faxing, I would just create seperate IP lines for the faxing, G711 codec, and set up user short codes for the fax users to send them via the FAX IP line.

 

[573dawn]

Hi aarenot, yes we have a fax server as you described. If this weekend goes smoothly, without any incompatible issues, I plan to try going from 8k compression to 64k compression. I am not sure I have the skills to set up a fax only ip line, so I will have to study that.

Thanks!

 

[kurthansen]

Sorry I just got back to this website. What I was trying to say was you could uncheck the voice networking on the lines/trunks that didn't need to be there. That way if you vender did have them their for failover if your main site went down. But they should not have had voice networking on them.

Oh by the way I used to go to Lake of the Ozarks every year whith my parents when I was a kid. I have just recently started taking my family there and I believe we are coming down again this year. I live in Iowa.

 

[573dawn]

Hi Kurthansen, well, we've been incompatible free since Thursday! If we get through today and tomorrow I am considering it definitively fixed, and will move on to the other issues I have.

So do you come down to the lake often? I know it's off topic, but if you go to

http://www.warlock454.com,

my hubby & I have 3 webcams looking over the lake at the 8mm main channel. Also, if you hadn't heard, there will be a very exciting event here this year, the Offshore Super Series National Championships, and they are being held right in front of our house. We are absolutely thrilled, these are some of the fastest boats in the world. Where do you usually stay?

 

[573dawn]

I should have said that the races will be held sept 28-30

 

[kurthansen]

I just was reading that you are having fax issues also. Did you check the fax support on the IP lines/trunks between the sites? If you have faxes that go across the SCN you need this check box checked. So if you have a line at one site that faxes come in on that go to the fax server they are going across the SCN.

My parents brought me down to LOTO every year for the first 15 years of my life. I think we would always stay at Alhonna? We stayed their last year also just to see what it was like. Not sure where we will go this summer.

 

[573dawn]

kurthansen, the fax support is checked on all lines. I think perhaps the problem is compression. It has also been suggested that I set up separate lines for faxing only. Once the weekend has passed without incompats, I am going to give those suggestions a try.

Alhonna is on the 8mm main channel! In fact we live across the channel from Alhonna on the West side. If you come down this year, I definitely owe you a drink and boat ride