Mitel UCX with MBG One-way Audio

[TerryLee721]

Hi all,
has anyone experienced the one-way audio with UC Express softphone connected to the MBG with Server-Gateway mode?

I'm now experienced the one-way audio with above setup, the UCX can only hear the voice from the other party. The UCX softphone works fine if I connected to the 3300ICP locally. I've tried to apply the STUN server: stun.ingenius.com, but got the same result.
Since there is no problem with X-Lite, so will it be possible of my mis-configuration of UCX? I use all default settings. (X-Lite also)

Thanks for anyone's help!

 

[IrwinMFletcher]

I doubt it's a misconfiguration, but perhaps a port issue or a bug in the software. X-Lite will use SIP, while the softphone in UC will use Minet.

As I suggest in all of the one-way/no-way audio scenarios, if you really want to cut to the chase, you need to sniff the signaling/traffic to find out what's going wrong.

 

[TerryLee721]

Thanks for your help.
The problem was solved after I upgraded the MBG to MBG6.0. I used MBG5.2 before.