MiVoice Office 250 hard time hearing SIP user international call only

[pacjt]

We have a SIP user that says when calling international only, the person they are talking to has a hard time hearing them.  When the SIP user calls internally we can hear them fine. We had them call a cell phone and that was fine also.

I know there could be many reasons bandwidth, firewall, etc.  and I don't know too much about the phone system but wanted to see if anyone knew if there was a setting on either the Mitel Phone Manager, MiVoice Office 250 DB programming or MiVoice Office Application Suite to improve the call quality.

[Tech Electronics]

pacjt,

You could try increasing the Conference Gain.

Turn on Online Monitor under View at the top.

System > System Information [OLM Only]
-Conference Gain: 3dB of Gain

You may also want to make sure that your Audio Type is set correctly for DSCP L3.

System > Devices and Feature Codes > IP Connections
-Change Extensions for Processor Module and Expansion Card
--P6001   Processor Module
----Audio RTP Type of Service: 184    <-- This is expedited forwarding
----Data Type of Service: 184       <-- This is expedited forwarding
--P6101   Expansion Card
----Audio RTP Type of Service: 184    <-- This is expedited forwarding
----Data Type of Service: 184       <-- This is expedited forwarding

Then there is looking at what Codec you are trying to use for those phones. Try using G.729 to see if that improves it.

Also, if I remember correctly there are some noise suppression settings as well, but I can't remember where those are, maybe under each phone.

It has been a long time since I have been inside of a MiVO-250 so some of this information is a little fuzzy.

Thanks,

TE

[pacjt]

Thanks TE, I will try that out