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Messages - dporod

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Mitel MiVoice Business/MCD/3300 / Re: Audio drops on LAN calls
« on: March 21, 2019, 07:49:32 AM »
In your situation I would do the following:
1/ Rule out it being just one switch causing this - does it happen "within the switch" on multiple switches?
2/ check the switch logs for events such as STP blocking events.
3/ do performance monitoring on this switch to see what traffic is being inputted to it.
 
Congestion usually manifests itself as random dropped packets and poor quality voice, not periods of complete silence. This sounds more like some other mechanism is interrupting all traffic.

It happens both within the switch and on multiple switches. STP looks fine. I've done packet captures on the switch, looks normal.

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Mitel MiVoice Business/MCD/3300 / Audio drops on LAN calls
« on: March 19, 2019, 11:39:54 AM »
We are having an issue where audio will drop for 3-5 seconds periodically during an IP phone to IP phone calls. The call will stay up, just a period of silence. We have 6920 phones and the 3300 controller.

What I have noticed is that if I change the switchport access vlan (not the voice vlan that the phones are using) to a less busy vlan that the drops do not occur. These drop can happen within the same switch, we do have QoS enabled.

I think these phone might use ARP as a keep alive an suspect they cannot keep up with the amount of traffic on the busier vlan.

Any thooughts?

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Mitel MiVoice Business/MCD/3300 / Re: 69xx Series Phones: Issues
« on: March 11, 2019, 05:27:35 PM »
Guys,

It seems that lately we are having a lot of issues with the 69xx series phones with the combination of their Month, Week,  Revision and Firmware installed.

For instance
phones made in 2018 48 with Revision: B14(03) with FW: 1.4.0.73 will upgrade, but not downgrade.
phones made in 2018 49 with Revision: B14(03) with FW: 1.4.0.73 will upgrade, but not downgrade.
phones made in 2018 48 with Revision: B16(15)  FW: 1.4.0.73 will neither upgrade or downgrade.

Previous phones made in 2018 22 with Revision: 28(24), original FW: Unknown, will upgrade and downgrade, but if they have firmware 1.3.0.112 they seem to have issues.

Mitel's answer to some issues we were having on an 8.0 SP3 PR2 system was to upgrade them all to firmware 1.4.0.80 as that is the firmware that will work on a 8.0 system to resolve issues with firmware itself, but not the hardware issues the phones may have.

I also know previously if you had a phone that was below 1.0.0.148 it had to be manually upgraded to that version and then it would download the latest version from the system. This obviously is no longer a problem unless the issue of firmware updates has returned for phones issued towards the end of 2018.

So, my question is does anyone know of any other hardware/firmware/combinations that have issues?

Thanks,

TE

We have about 900 6920's. They all have 1.3.0.112 except a few that we have upgraded as a test.

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Mitel MiVoice Business/MCD/3300 / Re: Upgrade 6920 Firmware Remotely
« on: March 08, 2019, 07:23:37 AM »
i assume this is using the controller for tftp. I myself would put the latest .85 on it regardless. Since both loads are available online. You can do the upgrade to test version, load phone(s), put old version on. you would have to rename the 112 file name before or after uploading for the command file to work.

I tend to agree with you. We don't have access to the support website, which seems crazy to me as the owner of the system, so we have to go through a vendor. The vendor did give us the 1.4 firmware.

How old/buggy is 01.03.00.112?

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Mitel MiVoice Business/MCD/3300 / Upgrade 6920 Firmware Remotely
« on: March 07, 2019, 08:38:16 AM »
Is it possible to upgrade the firmware on a single minet 6920 01.03.00.112 for testing purposes? I know I can statically assign the TFTP server address on a phone if I am at the phone. But is there a way to do that remotely?

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Mitel MiVoice Business/MCD/3300 / Re: Voice Quality Statistics report
« on: February 27, 2019, 01:51:42 PM »
Thanks for helping. I do appreciate it.

This is why I really l don't like this model of support. I'm a customer/owner/user and can't get access to the tools I want to use. What does it take to become a certified technician?
You must be sponsored by an authorized dealer, and go to the certification class and pass... Better to just get them to download it for you and give it to you.

I'm not sure that the phone system stats are the most useful measurements. The phone system can't see how the packets are prioritised on the network.
On Cisco switches for example, after setting up each new site for one organisation, I recall my testing step included getting a call up site-to-site, recording subjective testing, then after hanging up doing a "show mls qos stats" on the switch on each site to see that the voice packets had been sent to the priority queue and the non-voice packets had been sent in queue 0.
 
Do you have a general description of the problem being experienced?


We use the show mls qos stats command and it does show that the packets are being queued to the priority properly and not dropped by the switch.

However if the packet was "lost" after leaving the switch (such as a dirty fiber connection) this would not show up in the show mls qos stats. However it would be shown as missing by something keeping track of the packet stream, such as a phone. The phone then sends the stats to a logging device like the Mitel (Voice Quality Statistics report) or alternatively the IP Phone Analyzer server.

We do get drops on some calls. Some may be due to qos. Some may not.


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Mitel MiVoice Business/MCD/3300 / Re: Voice Quality Statistics report
« on: February 26, 2019, 02:23:02 PM »
On the other hand, if you are investigating "QoS issues", then this is pretty much out of the control of the phone system anyway, except for:
 - the DHCP option given to the phone contains both Layer2 (CoS) and Layer3 (DSCP) values - make sure these are right.
 - the controller similarly should have these same codes on it.
 
Anything else to do with QoS, you should be looking at the network: find the bottlenecks, ensure QoS is configured to prioritise the values the phones are using.

Oh we are working on the network:) Using the phones as probes and sending "QoS" measurements to the server with IP Phone Analyzer installed on it would help us do that work.

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Mitel MiVoice Business/MCD/3300 / Re: Voice Quality Statistics report
« on: February 26, 2019, 02:18:49 PM »


Thank you, where you normally download the IP Phone Analyzer from? Mitel?
Yes... Software Download Center -> MiVoice Business



Sent from my Moto G (5) Plus using Tapatalk



Hi, for the life of me I can't find the download site on mitel.com
You have to login to connect.mitel.com

You must be a vendor or certified technician.

Sent from my Moto G (5) Plus using Tapatalk

Thanks for helping. I do appreciate it.

This is why I really l don't like this model of support. I'm a customer/owner/user and can't get access to the tools I want to use. What does it take to become a certified technician?

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Mitel MiVoice Business/MCD/3300 / Re: Voice Quality Statistics report
« on: February 22, 2019, 04:25:35 PM »


Thank you, where you normally download the IP Phone Analyzer from? Mitel?
Yes... Software Download Center -> MiVoice Business



Sent from my Moto G (5) Plus using Tapatalk



Hi, for the life of me I can't find the download site on mitel.com

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Mitel MiVoice Business/MCD/3300 / Re: Voice Quality Statistics report
« on: February 21, 2019, 09:12:19 AM »
You can also web-browse to the phone itself and use its in-built troubleshooting tools.

I tried http://10.5.44.75 and https://10.5.44.75 but just get an unable to connect browser message. Am I using the right url?

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Mitel MiVoice Business/MCD/3300 / Re: Voice Quality Statistics report
« on: February 21, 2019, 09:09:48 AM »
Only for basic troubleshooting... For more indepth capturing of information, use Mitel's IP Phone Analyzer application. You set it up on a separate PC and add that PC's IP address to DHCP option 125, phones then report back to that PC running Mitel's software. It is actually a fantastic tool, but I haven't had a need for it in years.
[/quote]

Thank you, where you normally download the IP Phone Analyzer from? Mitel?

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Mitel MiVoice Business/MCD/3300 / Re: Voice Quality Statistics report
« on: February 20, 2019, 09:26:49 AM »
Does anyone rely on this report? It would be nice if I could as each phone is basically a data collector on the network. Is there a way to talk with Mitel directly? Really do not like this support model of having to go through a 3rd party.

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Mitel MiVoice Business/MCD/3300 / Re: Voice Quality Statistics report
« on: December 05, 2018, 08:45:11 AM »
Not which of these is the software version. I'm new to Mitel. We are working on QoS issues but I don't know if I can trust this report.



Release level: 8.0 SP3 PR2
Active software load: 14.0.3.37

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Mitel MiVoice Business/MCD/3300 / Re: Voice Quality Statistics report
« on: December 04, 2018, 11:25:30 AM »
I'm attaching a spreadsheet showing an entire call. I do not understand why there are discrepancies in the packet loss columns.

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Mitel MiVoice Business/MCD/3300 / Voice Quality Statistics report
« on: November 29, 2018, 02:46:41 PM »
Hi, can anyone explain the Voice Quality Statistics report? I don't understand how there can be a zero in the packet loss column but a 204 in the Packet Loss Max. Burst column.




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