sundance-communications.com/forum Forums VOIP Phones & IP PBX VoIP & Cloud Phones, Hosted PBX, General IP Phones Sprint FlexiCom500 Voice Quality Problems

Have the people on site(Preferably yourself so you're not getting second hand info) make a call on each local line. If it's all lines (longshot) then you may a system issue. If it's every 50th call on random lines- welcome to the world of lowered bar for acceptable quality.

Thanks for your brutal honesty Rather Be Fishing, now I know how you arrived at your screen name.

I WILL go there myself and listen to the weatherman all day long from every line. The branch office has a hunt group that makes trouble shooting more difficult. Just last week I had a provider tech check the line in the locked phone room only to discover the the main line has been intentionally pulled out of the system (by whom & why, I don't know but the same thing happened in the corporate office a few years ago).

It's not every 50th call it's more like after the system re-set voice quality becomes progressively worse until 3-5 days later the quality becomes so bad that they make me aware of the continuing issue and that I made a mistake pulling the old system.

Frankly, I feel like I am fishing! Thanks again, Jeanette

I have been working on Tadiran systems for 13+ years are they are good solid systems. Not a tinker toy. The trunk cards are generally VERY good to possibly being the best on the market.

Resetting the phone system can't be the issue...there is something here we are missing. I have never seen an issue with analog lines that couldn't be pin pointed to the problem. It SOUNDS like a clocking issue but you haven't told me you had digital circuits. Are you using VOIP to tie the systems together using a UGW card for Qsig on VOIP? Is it a centralized voicemail and if so what brand? Are you using POTS(loop start) lines OR Ground Start? Has the PBX provider checked for a good ground on the system?

Are you using Vonage or other VOIP carrier for local service? To be honest I would almost have to look into the system remotely or on site to tell you some very basic things or see if anything is programmed incorrectly. I have a hard time believing the local lines to the local phones would be bad. I could EASILLY see calls going over VOIP having issues the way you are setup. ANother issue could be if you are using some sort of Rockwell ACD and "tromboning" through the VOIP lines. I guese I need more info. BUt I will continue to try and help.

Thanks Coral Tech,
I'm happy to hear that I purchased the best on the market.
I'm waiting for the phone line tech to call me back with the stress levels and DB stats on the phone lines. He's checking on the line parameters and the physical wireing inside and outside the office.
I'm checking on your other questions.

Wish you lived the WI but I don't know if you could possibly be proud of the Packers just now. Ha!If you keep making so much sence I may have to become a Bears fan! Thanks Again, Jeanette

LOL

Hey Coral Tech,
To answer some of your questions: We have a UGW card and we are using POTS(loop start)lines. The PBX provider says that we "should" have a good ground on the system.
I found out that the "back door" pots line to the voice mail is running at -7DB and that combined with the bandwidth issues on the 768 DSL between offices when a call is transfered gives us "crap" for voice quality.
We are narrowing the problems down very gradually while attempting to reserecting the relationship with the original system installers. Apparently there were communication issues between the complaint department and the technical support folks which resulted in this non-responsive result. I'll let you know the end result.
Thanks again for the education. Jeanette

The Coral can "tweak" DB levels but you don't want to really do that too much as then you will start to get DTMF distortion. Good luck!

I'm back with the third party test results on the phone lines in our branch office, here's what they said...
"We tested the talk battery and loop current levels of each of the seven telephone lines connected to system. All of the levels were well within the normal operating range (30-33 ma loop voltage and 50-52V talk battery voltage). We also tested each line for quality by repetitively measuring the electrical noise, or lack there-of, on the line while on hook, off hook and while in a call. We were not able to deduce that any problems occurring within the telephone system were the cause of the incoming telephone lines. This leads us to believe that the problem is inherent within the telephone switch itself."

What do they mean by "telephone switch"?

In addition to the test results, they are recommending that we temporarily remove the Tadiran phone system and replace it with a panasonic system to find out once and for all if the problem is the phone system.

It's a very expensive test. What are your thoughts?

Are these lines going into a trunk card on the IPX500 or an FXO box? I have NEVER had an issue with with CO port card on the system that would include all the lines sounding bad. Once in a while you get a bad port usually from an electrical strike of some kind but not all.

That would be rediculous to replace the IPX with a Panasonic with an issue this simple to get resolved. It can only be a few things if they are using an 8T/s card. This isn't rocket science and the local phones shouldn't have any issues dialing from local lines to test this. Without a doubt if I was on site I would have this figured out quickly. I mean, it can only a couple things if everything you have told us is correct.

Something not configured properly, bad tail cable or not seated correctly, or bad 8T card (which I have never seen all ports bad on ever). I know thisis a stupid question but did your guys check the damn a-law/mu-law settings in SFE? This is like Tadiran 101 stuff here.

I would also be checking PDB, CDB trk to make sure everything is properly setup. Hey, here is a thought are your Co-cards equipped CID boards and have they tried taking them off after checking everything?

Yeeks...I'm lost in your lingo again. I need to do some lingo research before I attempt to answer ANY of your questions. I'll do that tomorrow morning and get back to you.

As far as the stupid question you mentioned, I can only hope that "my guys" are making it a priority to check everything in place for our branch office cause it hasn't worked right since inception and they know it. My fear is that they don't know what to do anymore. I know they have recently been messing with the system remotely but I don't know what they are doing. All I know for sure is that suddenly my Microsoft Outlook shows that I have voicemails again but I can't listen to them on my computer like I used to be able too and I had to pull the voice mail card out of it's slot last week to re-boot it again. The fix always seems to be like Microsoft Windows fix ...re-boot it and hope for the best. Jeanette