Interchange causes IP stations to re-register

[evertw]

We have a HP DL360G7 with CM6 and G650 gateways.
When we do an interchange the stations are re-registering with the CLAN's.
Stations with a call stay online, but on idle stations we don't get a dialtone for about 10 seconds.
How can we solve this?

[jmazis]

can you check if the duplication link is up (statapp on linux shell)?