Hello, We have an * installation that is causing us fits. The problems we are seeing: 1) In the middle of a call the call gets dumped and the caller hears a dial tone. 2) While talking on a call the caller hears nothing for 5 to 10 seconds. The person on the other end of the call hears everything just fine. Then the call returns to normal and both parties can hear. our network: PSTN <--> Asterisk /w T100p <-IAX2-> Asterisk2 /w zapdummy <-sip> snom 200's Any insight would be much appreciated. lach