Messages

1

MiVoice Office 250/Mitel 5000 / Re: How to troubleshoot audio quality issue (sounds muffled)?

« on: May 13, 2022, 11:12:43 AM »

Thanks a lot, TE!  (I'm waiting for the users to get back to me.)

2

MiVoice Office 250/Mitel 5000 / Re: How to troubleshoot audio quality issue (sounds muffled)?

« on: May 10, 2022, 07:06:25 PM »

Thanks, TE!  i'm going to try it out.

Listening to the VoIP codecs comparison here https://www.youtube.com/watch?v=LNMfDrTka3c, it sounds like G.711 is slightly better than G.729, but G.722 is much clearer.  (Are these samplings accurate...?)  Is it possible to add G.722 in Mitel MiVoice 250?

3

MiVoice Office 250/Mitel 5000 / Re: How to troubleshoot audio quality issue (sounds muffled)?

« on: May 10, 2022, 02:58:31 PM »

Thank you, TE.
The current Speech Encoding Setting is G.729.
See pic: http://prntscr.com/q_8ixg1KUmH6
There are other other options: G.711 Mu-Law, G.711 A-Law, G.729B (VAD), BroadVoice32
Which one would you recommend for best audio quality?  Also, does it requires restarting the Mitel box/server after changing this?  Thanks!

Thanks for tips on getting training.

4

MiVoice Office 250/Mitel 5000 / Re: How to troubleshoot audio quality issue (sounds muffled)?

« on: May 09, 2022, 04:53:10 PM »

Thanks, TE, for confirming the trunk type.  It's all zero's across the board, see pic:


All users are having this issue (only the ones complaining now seem more sensitive, others seem used to it...).  It happens on Intercom calls as well.  The users complaining are having lots of one-to-one calls but not conference calls.

Understood.  (couldn't find anything Mitel related on Udemy... i watched 3 videos from Elithecomputerguy youtube channel: Intro to Telephone Systems, Telephone System call routing, and Intro to VOIP... but those are super high level overview...)

5

MiVoice Office 250/Mitel 5000 / Re: How to troubleshoot audio quality issue (sounds muffled)?

« on: May 08, 2022, 11:51:47 PM »

Thank you, acejavelin and TE, for your replies.

... how do i tell what trunks do we have?
* from the "MiVoice Office 250 System ADministration & Diagnostics" program > System status (tab)  > Bay/Module Status (section), there are 3 bays: Bay 1 - Digital Desktop Module (i'm pretty sure those are digital line); Bay 3 - Loop Start Module (i'm pretty sure those are analog lines); Bay 4 - Dual T1/E1/PRI Module (these are the ports we use for our IP phones... but what trunk type are they?)
* from the "MiVoice Office 250 System ADministration & Diagnostics" program > System information (tab) > System Information (section) > Platform (sub section) > click Hardware ID -> License Information > General > Software license features, there the count for SIP Trunks: is 0
* when I go to DB Programming > MiVoice Office 250 > System > Trunk-Related Information > SIP Gateways > 1 (the only option) > SIP Trunks, it's totally blank there.
 
Base on above, can you tell what trunk types we are connecting the IP phones to?  (Or, is there other place I can look for a definitive answer?)

The issue is not with users on headsets, but the IP phone handsets and speakers.

(no wonder... proprietary trainings...)

6

MiVoice Office 250/Mitel 5000 / How to troubleshoot audio quality issue (sounds muffled)?

« on: May 06, 2022, 01:26:17 PM »

Hi all, we have a Mitel MiVoice 250 system with 5320e IP phones, lately some users complained about the audio quality, it sounds muffled and they cannot hear well what the other party is saying in meetings.  We did the phone system reboots, switching IP phones (to new ones), but problem persists.

I'm pretty new to the phone system area... Any suggestions what to look at or where to start?
Also, is there any related Mitel installation/training course available online?  (I searched Youtube but the most relevant i could find were some Mitel programming videos from a channel named DenwaUK).  Thanks.