Messages

1

Mitel MiVoice Business/MCD/3300 / Re: Poor wireless roaming performance with Mitel 5624 Wi-Fi phones

« on: October 15, 2018, 03:32:50 AM »

@Dogbreath - The voice stream doesn't drop for 60 seconds, it's the roaming process that can take over 60 seconds.
The 5624 phone hangs onto a WAP outputting signal at a strength of -80 to -85 dbm when you're standing directly under a WAP outputting signal at -30 to -40 dbm.
When the phone finally does roam you may get between 5 - 15 seconds of silence or garbled voice.

@acejavelin - U-APSD is turned on in the radio profile for the 2.4Ghz / 5Ghz radios which I believe is the same as WMM-PS.

2

Mitel MiVoice Business/MCD/3300 / Poor wireless roaming performance with Mitel 5624 Wi-Fi phones

« on: October 10, 2018, 09:53:11 AM »

We have 4 x Mitel 5624 Wi-Fi phones we're trialling at a customers site.
The site uses a D-Link DWC-2000 wireless controller + 149 D-Link DWL-8610AP access points.
Our problem is that we can't get the phones to seamlessly / fast roam between access points.
We removed all security from the voice SSID thinking security was the issue but that made no difference to the roaming performance.
We've tested every recommended wireless controller / WAP setting from multiple configuration guides for Aruba, Cisco, etc. but nothing has worked thus far.
The phone can take anywhere from 1 minute - 5 minutes to roam to a WAP outputting a better signal.
You can be standing directly in front of a WAP outputting a -30dbm signal and the phone will remain connected to a WAP outputting -80dbm.
Phones are running the latest firmware version 6.0.7

From our perspective it seems like the roaming algorithm in the phone is broken.
Anyone have any suggestions on how to improve the roaming functionality or experienced the same problem?

3

MiVoice Office 250/Mitel 5000 / Re: Phone lights up, does not boot, no text displayed on LCD

« on: November 05, 2014, 03:11:52 PM »

One was brand new out of the box and the other was an old phone that was in use.
What does holding the Blue Superkey / Directory button do as you start-up the phone?

4

MiVoice Office 250/Mitel 5000 / Phone lights up, does not boot, no text displayed on LCD

« on: November 05, 2014, 04:44:37 AM »

I have 2 x Mitel 5224 IP phones that when plugged into a POE switch light up but do not boot the start-up firmware.
Nothing is displayed on the LCD screen.
Any suggestions?
Could the firmware be corrupt?
Is there anyway to write new firmware to the phones?

5

MiVoice Office 250/Mitel 5000 / Re: handset power

« on: November 05, 2014, 04:28:47 AM »

How did you go with this issue?
I have two 5224IP phones that do exactly what you are describing.
You plug them into the POE switch and all lights light up but the phone doesn't appear to boot it's firmware.
Nothing is displayed onscreen, etc.

Did you find a fix for this issue? Or did you have to replace the handsets?