One way speech on ip phones

[VoiceonData]

We have three soe linked via SCN

They were running 3.2 59 and have been upgraded to 4.1 9.
all 5610 handsets
They are in differnet countrys and use the scn for breakout.

eg europe call 0044 number it is routed over the scn and breaksout of the isdn in the uk.
This worked fine in 3.2.
Since the upgrade calls coming in or out of the ISDN in the UK and routed over the SCN has intermitant one way speech.

But site to site internal calls are fine.

We are rolling back to 3.2 as it works.

Any ideas / clues



Except for the

 

[kwing112000]

You may want to check the direct media path settings. has anything else changed? from 3.2 to 4.0 everything is changed to ars.

 

[VoiceonData]

all checked still no luck

nothing else has changed

 

[kwing112000]

Try unchecking it and see what happens.

 

[VoiceonData]

sorry i meant i had looked at it.
Have tried checked and unchecked

 

[ABCTELECOM]

Is voip silence suppression enabled? If so take it off.