atcomsystems.ca/forum Forums TDM Business Telephone Systems Vodavi Telephones & Systems Vodavi STSe MWI all lighting

Good morning everyone,
I have a recurring issue that we have been seeing occasionally on a few Vodavi STSe systems running In skin hdd VM, but only on Comcast POTS service.

Sporadically (currently about twice a week), users will witness the MWI lighting for all users across the company. The system continues to function properly, but the MWI will not clear until the manager resets the ksu.

This has happened on at least two systems in very divergent areas - however, both featuring this same config.

Our first thought was to blame Comcast for wrongly passing stutter tone on occasion (we have confirmed that there is no VM on the lines), but they have assured us that shouldn't be possible.

Any thoughts?

We've had this exact situation twice. Comcast's line voltage is different than old-school CO providers. We figured it somehow was triggering the MW lights to light -- that is all lights on every phone. We found no solution, other than to disable the light as a MW light, which defeats the purpose of the light, & is really no solution at all. They still have the solid DSS lamp (VM-440) lighting up as VM indication, so we convinced them that's the way it will have to be. Luckily, they were ok with that.

I'm interested to hear if there is a fix for this.

^^^^
After much fighting with the cable company they ended up fixing this issue at a site that we had with the same issue not sure what it was but I still suspect they had VM on one of the lines that was causing it.

GreggM,
Thanks, that is very helpful. I was leaning the same direction myself (that it was a spike or line voltage issue from Comcast), but hadn't done enough testing to clarify that possibility. Saves me a lot of time - thanks a lot.

I'll probably call Comcast and see if anyone offers any ideas, otherwise I'll probably proceed as you suggest.

Other note - on Software V2, you can change the "Msg" button to function as a VM key instead of a standard Message key. We may consider this as an alternative to just the DSS keys.

Thanks again!

Ask your customer if they ever hear stutter dialtone. If they answer yes, than you know that there is telco vm on at least one of the lines and it is turning the lights on.

GreggM, how were you able to disable the MW light (top of the handset) while still receiving Lights on a DSS when VM is present?

When you set it to VM in Flash 50 for light control it control internal VM as well as Telco VM. You can disable it.

Spoke too soon - I believe we found it. Thanks guys - valuable feedback from all!