Mitel Border Gateway - one way audio

[mdemone]

Hello,

I'm having an issue with some IP phones that we have setup from home.  I'll explain my setup so that you have some background info.  I have 2 different 3300 systems and 2 Teleworkers in 2 locations.  We have IP phones set up to connect from our user's houses on both teleworkers through the border gateway.  If somebody from location 1 (home phone through border gateway) dials a 4 digit extension to someone in location 2 the person in location 2 cannot hear audio.  If somebody from location 2 (home phone through border gateway) dials a 4 digit extension to location 1 they can hear audio both ways just fine.  I compared the settings from the 2 teleworkers and didn't find any discrepancies. Also worth noting is that we have one of the phones from Location 2 in the office of location 1 (behind it's firewall).  When a home user in location 1 dials this phone they hear audio both ways as well (which I thought was weird considering this phone is registered to location 2's teleworker.  Also this issue is only related to using a 4 digit extension, if the user in location 1 dials location 2 using the full number it works fine.  Any suggestions on where I should look first?

Thanks

[mdemone]

might be worth mentioning as well, this issue only occurs with phones set up from home.  all of the phones set up locally in each office talk to each other just fine.

[Kurt]

sounds like a firewall issue, but my suggestion would be to turn on local streaming in the MBG setup of those remote users.

Since you are describing that the issue is isolated to remote users, turning on local streaming will allow the IP phones to send their audio stream directly to one another, rather then through the MCD.

[mav]

def sounds like a firewall issue, any one way audio usually is.

[brantn]

Almost always 1 way audio is a routing issue but if what you are telling us its true and the did works then it isnt a routing issue. I would also suggest to get a captureof the calls. I would also suggest the network analyzer tool that is on mbg to be run. After all that I would then look at suppress use of ccm before isdn progress on the ip trunks our make sure they are both homed to the same controller.

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